29951000

素因数分解:

$2^3\times 5^3\times {\mathrm{61}}^1\times {\mathrm{491}}^1$

素因数の和:573

約数の個数: 64

約数和(自身を含む): 71379360

約数和(自身を除く): 41428360

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 61, 100, 122, 125, 200, 244, 250, 305, 488, 491, 500, 610, 982, 1000, 1220, 1525, 1964, 2440, 2455, 3050, 3928, 4910, 6100, 7625, 9820, 12200, 12275, 15250, 19640, 24550, 29951, 30500, 49100, 59902, 61000, 61375, 98200, 119804, 122750, 149755, 239608, 245500, 299510, 491000, 599020, 748775, 1198040, 1497550, 2995100, 3743875, 5990200, 7487750, 14975500, 29951000]

約数ペア:

[(1, 29951000), (2, 14975500), (4, 7487750), (5, 5990200), (8, 3743875), (10, 2995100), (20, 1497550), (25, 1198040), (40, 748775), (50, 599020), (61, 491000), (100, 299510), (122, 245500), (125, 239608), (200, 149755), (244, 122750), (250, 119804), (305, 98200), (488, 61375), (491, 61000), (500, 59902), (610, 49100), (982, 30500), (1000, 29951), (1220, 24550), (1525, 19640), (1964, 15250), (2440, 12275), (2455, 12200), (3050, 9820), (3928, 7625), (4910, 6100)]