403000

素因数分解:

$2^3\times 5^3\times {\mathrm{13}}^1\times {\mathrm{31}}^1$

素因数の和:65

約数の個数: 64

約数和(自身を含む): 1048320

約数和(自身を除く): 645320

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 25, 26, 31, 40, 50, 52, 62, 65, 100, 104, 124, 125, 130, 155, 200, 248, 250, 260, 310, 325, 403, 500, 520, 620, 650, 775, 806, 1000, 1240, 1300, 1550, 1612, 1625, 2015, 2600, 3100, 3224, 3250, 3875, 4030, 6200, 6500, 7750, 8060, 10075, 13000, 15500, 16120, 20150, 31000, 40300, 50375, 80600, 100750, 201500, 403000]

約数ペア:

[(1, 403000), (2, 201500), (4, 100750), (5, 80600), (8, 50375), (10, 40300), (13, 31000), (20, 20150), (25, 16120), (26, 15500), (31, 13000), (40, 10075), (50, 8060), (52, 7750), (62, 6500), (65, 6200), (100, 4030), (104, 3875), (124, 3250), (125, 3224), (130, 3100), (155, 2600), (200, 2015), (248, 1625), (250, 1612), (260, 1550), (310, 1300), (325, 1240), (403, 1000), (500, 806), (520, 775), (620, 650)]