306995480

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{71}}^1\times {\mathrm{317}}^1$

素因数の和:441

約数の個数: 128

約数和(自身を含む): 791285760

約数和(自身を除く): 484290280

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 31, 40, 44, 55, 62, 71, 88, 110, 124, 142, 155, 220, 248, 284, 310, 317, 341, 355, 440, 568, 620, 634, 682, 710, 781, 1240, 1268, 1364, 1420, 1562, 1585, 1705, 2201, 2536, 2728, 2840, 3124, 3170, 3410, 3487, 3905, 4402, 6248, 6340, 6820, 6974, 7810, 8804, 9827, 11005, 12680, 13640, 13948, 15620, 17435, 17608, 19654, 22010, 22507, 24211, 27896, 31240, 34870, 39308, 44020, 45014, 48422, 49135, 69740, 78616, 88040, 90028, 96844, 98270, 108097, 112535, 121055, 139480, 180056, 193688, 196540, 216194, 225070, 242110, 247577, 393080, 432388, 450140, 484220, 495154, 540485, 697717, 864776, 900280, 968440, 990308, 1080970, 1237885, 1395434, 1980616, 2161940, 2475770, 2790868, 3488585, 4323880, 4951540, 5581736, 6977170, 7674887, 9903080, 13954340, 15349774, 27908680, 30699548, 38374435, 61399096, 76748870, 153497740, 306995480]

約数ペア:

[(1, 306995480), (2, 153497740), (4, 76748870), (5, 61399096), (8, 38374435), (10, 30699548), (11, 27908680), (20, 15349774), (22, 13954340), (31, 9903080), (40, 7674887), (44, 6977170), (55, 5581736), (62, 4951540), (71, 4323880), (88, 3488585), (110, 2790868), (124, 2475770), (142, 2161940), (155, 1980616), (220, 1395434), (248, 1237885), (284, 1080970), (310, 990308), (317, 968440), (341, 900280), (355, 864776), (440, 697717), (568, 540485), (620, 495154), (634, 484220), (682, 450140), (710, 432388), (781, 393080), (1240, 247577), (1268, 242110), (1364, 225070), (1420, 216194), (1562, 196540), (1585, 193688), (1705, 180056), (2201, 139480), (2536, 121055), (2728, 112535), (2840, 108097), (3124, 98270), (3170, 96844), (3410, 90028), (3487, 88040), (3905, 78616), (4402, 69740), (6248, 49135), (6340, 48422), (6820, 45014), (6974, 44020), (7810, 39308), (8804, 34870), (9827, 31240), (11005, 27896), (12680, 24211), (13640, 22507), (13948, 22010), (15620, 19654), (17435, 17608)]