80308780

素因数分解:

$2^2\times 5^1\times {\mathrm{53}}^1\times {\mathrm{239}}^1\times {\mathrm{317}}^1$

素因数の和:618

約数の個数: 48

約数和(自身を含む): 173093760

約数和(自身を除く): 92784980

約数列:

[1, 2, 4, 5, 10, 20, 53, 106, 212, 239, 265, 317, 478, 530, 634, 956, 1060, 1195, 1268, 1585, 2390, 3170, 4780, 6340, 12667, 16801, 25334, 33602, 50668, 63335, 67204, 75763, 84005, 126670, 151526, 168010, 253340, 303052, 336020, 378815, 757630, 1515260, 4015439, 8030878, 16061756, 20077195, 40154390, 80308780]

約数ペア:

[(1, 80308780), (2, 40154390), (4, 20077195), (5, 16061756), (10, 8030878), (20, 4015439), (53, 1515260), (106, 757630), (212, 378815), (239, 336020), (265, 303052), (317, 253340), (478, 168010), (530, 151526), (634, 126670), (956, 84005), (1060, 75763), (1195, 67204), (1268, 63335), (1585, 50668), (2390, 33602), (3170, 25334), (4780, 16801), (6340, 12667)]