201500

素因数分解:

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

素因数の和:63

約数の個数: 48

約数和(自身を含む): 489216

約数和(自身を除く): 287716

約数列:

[1, 2, 4, 5, 10, 13, 20, 25, 26, 31, 50, 52, 62, 65, 100, 124, 125, 130, 155, 250, 260, 310, 325, 403, 500, 620, 650, 775, 806, 1300, 1550, 1612, 1625, 2015, 3100, 3250, 3875, 4030, 6500, 7750, 8060, 10075, 15500, 20150, 40300, 50375, 100750, 201500]

約数ペア:

[(1, 201500), (2, 100750), (4, 50375), (5, 40300), (10, 20150), (13, 15500), (20, 10075), (25, 8060), (26, 7750), (31, 6500), (50, 4030), (52, 3875), (62, 3250), (65, 3100), (100, 2015), (124, 1625), (125, 1612), (130, 1550), (155, 1300), (250, 806), (260, 775), (310, 650), (325, 620), (403, 500)]