21550560

素因数分解:

$2^5\times 3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{139}}^1$

素因数の和:193

約数の個数: 192

約数和(自身を含む): 76204800

約数和(自身を除く): 54654240

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 17, 19, 20, 24, 30, 32, 34, 38, 40, 48, 51, 57, 60, 68, 76, 80, 85, 95, 96, 102, 114, 120, 136, 139, 152, 160, 170, 190, 204, 228, 240, 255, 272, 278, 285, 304, 323, 340, 380, 408, 417, 456, 480, 510, 544, 556, 570, 608, 646, 680, 695, 760, 816, 834, 912, 969, 1020, 1112, 1140, 1292, 1360, 1390, 1520, 1615, 1632, 1668, 1824, 1938, 2040, 2085, 2224, 2280, 2363, 2584, 2641, 2720, 2780, 3040, 3230, 3336, 3876, 4080, 4170, 4448, 4560, 4726, 4845, 5168, 5282, 5560, 6460, 6672, 7089, 7752, 7923, 8160, 8340, 9120, 9452, 9690, 10336, 10564, 11120, 11815, 12920, 13205, 13344, 14178, 15504, 15846, 16680, 18904, 19380, 21128, 22240, 23630, 25840, 26410, 28356, 31008, 31692, 33360, 35445, 37808, 38760, 39615, 42256, 44897, 47260, 51680, 52820, 56712, 63384, 66720, 70890, 75616, 77520, 79230, 84512, 89794, 94520, 105640, 113424, 126768, 134691, 141780, 155040, 158460, 179588, 189040, 211280, 224485, 226848, 253536, 269382, 283560, 316920, 359176, 378080, 422560, 448970, 538764, 567120, 633840, 673455, 718352, 897940, 1077528, 1134240, 1267680, 1346910, 1436704, 1795880, 2155056, 2693820, 3591760, 4310112, 5387640, 7183520, 10775280, 21550560]

約数ペア:

[(1, 21550560), (2, 10775280), (3, 7183520), (4, 5387640), (5, 4310112), (6, 3591760), (8, 2693820), (10, 2155056), (12, 1795880), (15, 1436704), (16, 1346910), (17, 1267680), (19, 1134240), (20, 1077528), (24, 897940), (30, 718352), (32, 673455), (34, 633840), (38, 567120), (40, 538764), (48, 448970), (51, 422560), (57, 378080), (60, 359176), (68, 316920), (76, 283560), (80, 269382), (85, 253536), (95, 226848), (96, 224485), (102, 211280), (114, 189040), (120, 179588), (136, 158460), (139, 155040), (152, 141780), (160, 134691), (170, 126768), (190, 113424), (204, 105640), (228, 94520), (240, 89794), (255, 84512), (272, 79230), (278, 77520), (285, 75616), (304, 70890), (323, 66720), (340, 63384), (380, 56712), (408, 52820), (417, 51680), (456, 47260), (480, 44897), (510, 42256), (544, 39615), (556, 38760), (570, 37808), (608, 35445), (646, 33360), (680, 31692), (695, 31008), (760, 28356), (816, 26410), (834, 25840), (912, 23630), (969, 22240), (1020, 21128), (1112, 19380), (1140, 18904), (1292, 16680), (1360, 15846), (1390, 15504), (1520, 14178), (1615, 13344), (1632, 13205), (1668, 12920), (1824, 11815), (1938, 11120), (2040, 10564), (2085, 10336), (2224, 9690), (2280, 9452), (2363, 9120), (2584, 8340), (2641, 8160), (2720, 7923), (2780, 7752), (3040, 7089), (3230, 6672), (3336, 6460), (3876, 5560), (4080, 5282), (4170, 5168), (4448, 4845), (4560, 4726)]