389217920

素因数分解:

$2^7\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{163}}^1$

素因数の和:243

約数の個数: 256

約数和(自身を含む): 1180327680

約数和(自身を除く): 791109760

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 16, 20, 26, 28, 32, 35, 40, 41, 52, 56, 64, 65, 70, 80, 82, 91, 104, 112, 128, 130, 140, 160, 163, 164, 182, 205, 208, 224, 260, 280, 287, 320, 326, 328, 364, 410, 416, 448, 455, 520, 533, 560, 574, 640, 652, 656, 728, 815, 820, 832, 896, 910, 1040, 1066, 1120, 1141, 1148, 1304, 1312, 1435, 1456, 1630, 1640, 1664, 1820, 2080, 2119, 2132, 2240, 2282, 2296, 2608, 2624, 2665, 2870, 2912, 3260, 3280, 3640, 3731, 4160, 4238, 4264, 4480, 4564, 4592, 5216, 5248, 5330, 5705, 5740, 5824, 6520, 6560, 6683, 7280, 7462, 8320, 8476, 8528, 9128, 9184, 10432, 10595, 10660, 11410, 11480, 11648, 13040, 13120, 13366, 14560, 14833, 14924, 16952, 17056, 18256, 18368, 18655, 20864, 21190, 21320, 22820, 22960, 26080, 26240, 26732, 29120, 29666, 29848, 33415, 33904, 34112, 36512, 36736, 37310, 42380, 42640, 45640, 45920, 46781, 52160, 53464, 58240, 59332, 59696, 66830, 67808, 68224, 73024, 74165, 74620, 84760, 85280, 86879, 91280, 91840, 93562, 104320, 106928, 118664, 119392, 133660, 135616, 146048, 148330, 149240, 169520, 170560, 173758, 182560, 183680, 187124, 213856, 233905, 237328, 238784, 267320, 271232, 296660, 298480, 339040, 341120, 347516, 365120, 374248, 427712, 434395, 467810, 474656, 477568, 534640, 593320, 596960, 608153, 678080, 695032, 730240, 748496, 855424, 868790, 935620, 949312, 1069280, 1186640, 1193920, 1216306, 1356160, 1390064, 1496992, 1737580, 1871240, 1898624, 2138560, 2373280, 2387840, 2432612, 2780128, 2993984, 3040765, 3475160, 3742480, 4277120, 4746560, 4865224, 5560256, 5987968, 6081530, 6950320, 7484960, 9493120, 9730448, 11120512, 12163060, 13900640, 14969920, 19460896, 24326120, 27801280, 29939840, 38921792, 48652240, 55602560, 77843584, 97304480, 194608960, 389217920]

約数ペア:

[(1, 389217920), (2, 194608960), (4, 97304480), (5, 77843584), (7, 55602560), (8, 48652240), (10, 38921792), (13, 29939840), (14, 27801280), (16, 24326120), (20, 19460896), (26, 14969920), (28, 13900640), (32, 12163060), (35, 11120512), (40, 9730448), (41, 9493120), (52, 7484960), (56, 6950320), (64, 6081530), (65, 5987968), (70, 5560256), (80, 4865224), (82, 4746560), (91, 4277120), (104, 3742480), (112, 3475160), (128, 3040765), (130, 2993984), (140, 2780128), (160, 2432612), (163, 2387840), (164, 2373280), (182, 2138560), (205, 1898624), (208, 1871240), (224, 1737580), (260, 1496992), (280, 1390064), (287, 1356160), (320, 1216306), (326, 1193920), (328, 1186640), (364, 1069280), (410, 949312), (416, 935620), (448, 868790), (455, 855424), (520, 748496), (533, 730240), (560, 695032), (574, 678080), (640, 608153), (652, 596960), (656, 593320), (728, 534640), (815, 477568), (820, 474656), (832, 467810), (896, 434395), (910, 427712), (1040, 374248), (1066, 365120), (1120, 347516), (1141, 341120), (1148, 339040), (1304, 298480), (1312, 296660), (1435, 271232), (1456, 267320), (1630, 238784), (1640, 237328), (1664, 233905), (1820, 213856), (2080, 187124), (2119, 183680), (2132, 182560), (2240, 173758), (2282, 170560), (2296, 169520), (2608, 149240), (2624, 148330), (2665, 146048), (2870, 135616), (2912, 133660), (3260, 119392), (3280, 118664), (3640, 106928), (3731, 104320), (4160, 93562), (4238, 91840), (4264, 91280), (4480, 86879), (4564, 85280), (4592, 84760), (5216, 74620), (5248, 74165), (5330, 73024), (5705, 68224), (5740, 67808), (5824, 66830), (6520, 59696), (6560, 59332), (6683, 58240), (7280, 53464), (7462, 52160), (8320, 46781), (8476, 45920), (8528, 45640), (9128, 42640), (9184, 42380), (10432, 37310), (10595, 36736), (10660, 36512), (11410, 34112), (11480, 33904), (11648, 33415), (13040, 29848), (13120, 29666), (13366, 29120), (14560, 26732), (14833, 26240), (14924, 26080), (16952, 22960), (17056, 22820), (18256, 21320), (18368, 21190), (18655, 20864)]