161685640

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{47}}^1\times {\mathrm{5059}}^1$

素因数の和:5134

約数の個数: 64

約数和(自身を含む): 393465600

約数和(自身を除く): 231779960

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 47, 68, 85, 94, 136, 170, 188, 235, 340, 376, 470, 680, 799, 940, 1598, 1880, 3196, 3995, 5059, 6392, 7990, 10118, 15980, 20236, 25295, 31960, 40472, 50590, 86003, 101180, 172006, 202360, 237773, 344012, 430015, 475546, 688024, 860030, 951092, 1188865, 1720060, 1902184, 2377730, 3440120, 4042141, 4755460, 8084282, 9510920, 16168564, 20210705, 32337128, 40421410, 80842820, 161685640]

約数ペア:

[(1, 161685640), (2, 80842820), (4, 40421410), (5, 32337128), (8, 20210705), (10, 16168564), (17, 9510920), (20, 8084282), (34, 4755460), (40, 4042141), (47, 3440120), (68, 2377730), (85, 1902184), (94, 1720060), (136, 1188865), (170, 951092), (188, 860030), (235, 688024), (340, 475546), (376, 430015), (470, 344012), (680, 237773), (799, 202360), (940, 172006), (1598, 101180), (1880, 86003), (3196, 50590), (3995, 40472), (5059, 31960), (6392, 25295), (7990, 20236), (10118, 15980)]