820052480

素因数分解:

$2^9\times 5^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{601}}^1$

素因数の和:678

約数の個数: 160

約数和(自身を含む): 2172704688

約数和(自身を除く): 1352652208

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 41, 52, 64, 65, 80, 82, 104, 128, 130, 160, 164, 205, 208, 256, 260, 320, 328, 410, 416, 512, 520, 533, 601, 640, 656, 820, 832, 1040, 1066, 1202, 1280, 1312, 1640, 1664, 2080, 2132, 2404, 2560, 2624, 2665, 3005, 3280, 3328, 4160, 4264, 4808, 5248, 5330, 6010, 6560, 6656, 7813, 8320, 8528, 9616, 10496, 10660, 12020, 13120, 15626, 16640, 17056, 19232, 20992, 21320, 24040, 24641, 26240, 31252, 33280, 34112, 38464, 39065, 42640, 48080, 49282, 52480, 62504, 68224, 76928, 78130, 85280, 96160, 98564, 104960, 123205, 125008, 136448, 153856, 156260, 170560, 192320, 197128, 246410, 250016, 272896, 307712, 312520, 320333, 341120, 384640, 394256, 492820, 500032, 625040, 640666, 682240, 769280, 788512, 985640, 1000064, 1250080, 1281332, 1364480, 1538560, 1577024, 1601665, 1971280, 2000128, 2500160, 2562664, 3154048, 3203330, 3942560, 4000256, 5000320, 5125328, 6308096, 6406660, 7885120, 10000640, 10250656, 12616192, 12813320, 15770240, 20001280, 20501312, 25626640, 31540480, 41002624, 51253280, 63080960, 82005248, 102506560, 164010496, 205013120, 410026240, 820052480]

約数ペア:

[(1, 820052480), (2, 410026240), (4, 205013120), (5, 164010496), (8, 102506560), (10, 82005248), (13, 63080960), (16, 51253280), (20, 41002624), (26, 31540480), (32, 25626640), (40, 20501312), (41, 20001280), (52, 15770240), (64, 12813320), (65, 12616192), (80, 10250656), (82, 10000640), (104, 7885120), (128, 6406660), (130, 6308096), (160, 5125328), (164, 5000320), (205, 4000256), (208, 3942560), (256, 3203330), (260, 3154048), (320, 2562664), (328, 2500160), (410, 2000128), (416, 1971280), (512, 1601665), (520, 1577024), (533, 1538560), (601, 1364480), (640, 1281332), (656, 1250080), (820, 1000064), (832, 985640), (1040, 788512), (1066, 769280), (1202, 682240), (1280, 640666), (1312, 625040), (1640, 500032), (1664, 492820), (2080, 394256), (2132, 384640), (2404, 341120), (2560, 320333), (2624, 312520), (2665, 307712), (3005, 272896), (3280, 250016), (3328, 246410), (4160, 197128), (4264, 192320), (4808, 170560), (5248, 156260), (5330, 153856), (6010, 136448), (6560, 125008), (6656, 123205), (7813, 104960), (8320, 98564), (8528, 96160), (9616, 85280), (10496, 78130), (10660, 76928), (12020, 68224), (13120, 62504), (15626, 52480), (16640, 49282), (17056, 48080), (19232, 42640), (20992, 39065), (21320, 38464), (24040, 34112), (24641, 33280), (26240, 31252)]