389485640

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{419}}^1\times {\mathrm{1367}}^1$

素因数の和:1814

約数の個数: 64

約数和(自身を含む): 930787200

約数和(自身を除く): 541301560

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 85, 136, 170, 340, 419, 680, 838, 1367, 1676, 2095, 2734, 3352, 4190, 5468, 6835, 7123, 8380, 10936, 13670, 14246, 16760, 23239, 27340, 28492, 35615, 46478, 54680, 56984, 71230, 92956, 116195, 142460, 185912, 232390, 284920, 464780, 572773, 929560, 1145546, 2291092, 2863865, 4582184, 5727730, 9737141, 11455460, 19474282, 22910920, 38948564, 48685705, 77897128, 97371410, 194742820, 389485640]

約数ペア:

[(1, 389485640), (2, 194742820), (4, 97371410), (5, 77897128), (8, 48685705), (10, 38948564), (17, 22910920), (20, 19474282), (34, 11455460), (40, 9737141), (68, 5727730), (85, 4582184), (136, 2863865), (170, 2291092), (340, 1145546), (419, 929560), (680, 572773), (838, 464780), (1367, 284920), (1676, 232390), (2095, 185912), (2734, 142460), (3352, 116195), (4190, 92956), (5468, 71230), (6835, 56984), (7123, 54680), (8380, 46478), (10936, 35615), (13670, 28492), (14246, 27340), (16760, 23239)]