21112560

素因数分解:

$2^4\times 3^2\times 5^1\times 7^1\times {\mathrm{59}}^1\times {\mathrm{71}}^1$

素因数の和:156

約数の個数: 240

約数和(自身を含む): 83566080

約数和(自身を除く): 62453520

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 24, 28, 30, 35, 36, 40, 42, 45, 48, 56, 59, 60, 63, 70, 71, 72, 80, 84, 90, 105, 112, 118, 120, 126, 140, 142, 144, 168, 177, 180, 210, 213, 236, 240, 252, 280, 284, 295, 315, 336, 354, 355, 360, 413, 420, 426, 472, 497, 504, 531, 560, 568, 590, 630, 639, 708, 710, 720, 826, 840, 852, 885, 944, 994, 1008, 1062, 1065, 1136, 1180, 1239, 1260, 1278, 1416, 1420, 1491, 1652, 1680, 1704, 1770, 1988, 2065, 2124, 2130, 2360, 2478, 2485, 2520, 2556, 2655, 2832, 2840, 2982, 3195, 3304, 3408, 3540, 3717, 3976, 4130, 4189, 4248, 4260, 4473, 4720, 4956, 4970, 5040, 5112, 5310, 5680, 5964, 6195, 6390, 6608, 7080, 7434, 7455, 7952, 8260, 8378, 8496, 8520, 8946, 9912, 9940, 10224, 10620, 11928, 12390, 12567, 12780, 14160, 14868, 14910, 16520, 16756, 17040, 17892, 18585, 19824, 19880, 20945, 21240, 22365, 23856, 24780, 25134, 25560, 29323, 29736, 29820, 33040, 33512, 35784, 37170, 37701, 39760, 41890, 42480, 44730, 49560, 50268, 51120, 58646, 59472, 59640, 62835, 67024, 71568, 74340, 75402, 83780, 87969, 89460, 99120, 100536, 117292, 119280, 125670, 146615, 148680, 150804, 167560, 175938, 178920, 188505, 201072, 234584, 251340, 263907, 293230, 297360, 301608, 335120, 351876, 357840, 377010, 439845, 469168, 502680, 527814, 586460, 603216, 703752, 754020, 879690, 1005360, 1055628, 1172920, 1319535, 1407504, 1508040, 1759380, 2111256, 2345840, 2639070, 3016080, 3518760, 4222512, 5278140, 7037520, 10556280, 21112560]

約数ペア:

[(1, 21112560), (2, 10556280), (3, 7037520), (4, 5278140), (5, 4222512), (6, 3518760), (7, 3016080), (8, 2639070), (9, 2345840), (10, 2111256), (12, 1759380), (14, 1508040), (15, 1407504), (16, 1319535), (18, 1172920), (20, 1055628), (21, 1005360), (24, 879690), (28, 754020), (30, 703752), (35, 603216), (36, 586460), (40, 527814), (42, 502680), (45, 469168), (48, 439845), (56, 377010), (59, 357840), (60, 351876), (63, 335120), (70, 301608), (71, 297360), (72, 293230), (80, 263907), (84, 251340), (90, 234584), (105, 201072), (112, 188505), (118, 178920), (120, 175938), (126, 167560), (140, 150804), (142, 148680), (144, 146615), (168, 125670), (177, 119280), (180, 117292), (210, 100536), (213, 99120), (236, 89460), (240, 87969), (252, 83780), (280, 75402), (284, 74340), (295, 71568), (315, 67024), (336, 62835), (354, 59640), (355, 59472), (360, 58646), (413, 51120), (420, 50268), (426, 49560), (472, 44730), (497, 42480), (504, 41890), (531, 39760), (560, 37701), (568, 37170), (590, 35784), (630, 33512), (639, 33040), (708, 29820), (710, 29736), (720, 29323), (826, 25560), (840, 25134), (852, 24780), (885, 23856), (944, 22365), (994, 21240), (1008, 20945), (1062, 19880), (1065, 19824), (1136, 18585), (1180, 17892), (1239, 17040), (1260, 16756), (1278, 16520), (1416, 14910), (1420, 14868), (1491, 14160), (1652, 12780), (1680, 12567), (1704, 12390), (1770, 11928), (1988, 10620), (2065, 10224), (2124, 9940), (2130, 9912), (2360, 8946), (2478, 8520), (2485, 8496), (2520, 8378), (2556, 8260), (2655, 7952), (2832, 7455), (2840, 7434), (2982, 7080), (3195, 6608), (3304, 6390), (3408, 6195), (3540, 5964), (3717, 5680), (3976, 5310), (4130, 5112), (4189, 5040), (4248, 4970), (4260, 4956), (4473, 4720)]