20168800

素因数分解:

$2^5\times 5^2\times {\mathrm{17}}^1\times {\mathrm{1483}}^1$

素因数の和:1520

約数の個数: 72

約数和(自身を含む): 52168536

約数和(自身を除く): 31999736

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 25, 32, 34, 40, 50, 68, 80, 85, 100, 136, 160, 170, 200, 272, 340, 400, 425, 544, 680, 800, 850, 1360, 1483, 1700, 2720, 2966, 3400, 5932, 6800, 7415, 11864, 13600, 14830, 23728, 25211, 29660, 37075, 47456, 50422, 59320, 74150, 100844, 118640, 126055, 148300, 201688, 237280, 252110, 296600, 403376, 504220, 593200, 630275, 806752, 1008440, 1186400, 1260550, 2016880, 2521100, 4033760, 5042200, 10084400, 20168800]

約数ペア:

[(1, 20168800), (2, 10084400), (4, 5042200), (5, 4033760), (8, 2521100), (10, 2016880), (16, 1260550), (17, 1186400), (20, 1008440), (25, 806752), (32, 630275), (34, 593200), (40, 504220), (50, 403376), (68, 296600), (80, 252110), (85, 237280), (100, 201688), (136, 148300), (160, 126055), (170, 118640), (200, 100844), (272, 74150), (340, 59320), (400, 50422), (425, 47456), (544, 37075), (680, 29660), (800, 25211), (850, 23728), (1360, 14830), (1483, 13600), (1700, 11864), (2720, 7415), (2966, 6800), (3400, 5932)]