81792750

素因数分解:

$2^1\times 3^1\times 5^3\times {\mathrm{13}}^1\times {\mathrm{8389}}^1$

素因数の和:8422

約数の個数: 64

約数和(自身を含む): 219885120

約数和(自身を除く): 138092370

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 25, 26, 30, 39, 50, 65, 75, 78, 125, 130, 150, 195, 250, 325, 375, 390, 650, 750, 975, 1625, 1950, 3250, 4875, 8389, 9750, 16778, 25167, 41945, 50334, 83890, 109057, 125835, 209725, 218114, 251670, 327171, 419450, 545285, 629175, 654342, 1048625, 1090570, 1258350, 1635855, 2097250, 2726425, 3145875, 3271710, 5452850, 6291750, 8179275, 13632125, 16358550, 27264250, 40896375, 81792750]

約数ペア:

[(1, 81792750), (2, 40896375), (3, 27264250), (5, 16358550), (6, 13632125), (10, 8179275), (13, 6291750), (15, 5452850), (25, 3271710), (26, 3145875), (30, 2726425), (39, 2097250), (50, 1635855), (65, 1258350), (75, 1090570), (78, 1048625), (125, 654342), (130, 629175), (150, 545285), (195, 419450), (250, 327171), (325, 251670), (375, 218114), (390, 209725), (650, 125835), (750, 109057), (975, 83890), (1625, 50334), (1950, 41945), (3250, 25167), (4875, 16778), (8389, 9750)]