322400

素因数分解:

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

素因数の和:64

約数の個数: 72

約数和(自身を含む): 874944

約数和(自身を除く): 552544

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 25, 26, 31, 32, 40, 50, 52, 62, 65, 80, 100, 104, 124, 130, 155, 160, 200, 208, 248, 260, 310, 325, 400, 403, 416, 496, 520, 620, 650, 775, 800, 806, 992, 1040, 1240, 1300, 1550, 1612, 2015, 2080, 2480, 2600, 3100, 3224, 4030, 4960, 5200, 6200, 6448, 8060, 10075, 10400, 12400, 12896, 16120, 20150, 24800, 32240, 40300, 64480, 80600, 161200, 322400]

約数ペア:

[(1, 322400), (2, 161200), (4, 80600), (5, 64480), (8, 40300), (10, 32240), (13, 24800), (16, 20150), (20, 16120), (25, 12896), (26, 12400), (31, 10400), (32, 10075), (40, 8060), (50, 6448), (52, 6200), (62, 5200), (65, 4960), (80, 4030), (100, 3224), (104, 3100), (124, 2600), (130, 2480), (155, 2080), (160, 2015), (200, 1612), (208, 1550), (248, 1300), (260, 1240), (310, 1040), (325, 992), (400, 806), (403, 800), (416, 775), (496, 650), (520, 620)]