40512020

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^2\times {\mathrm{43}}^1\times {\mathrm{163}}^1$

素因数の和:249

約数の個数: 72

約数和(自身を含む): 93043104

約数和(自身を除く): 52531084

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 43, 68, 85, 86, 163, 170, 172, 215, 289, 326, 340, 430, 578, 652, 731, 815, 860, 1156, 1445, 1462, 1630, 2771, 2890, 2924, 3260, 3655, 5542, 5780, 7009, 7310, 11084, 12427, 13855, 14018, 14620, 24854, 27710, 28036, 35045, 47107, 49708, 55420, 62135, 70090, 94214, 119153, 124270, 140180, 188428, 235535, 238306, 248540, 471070, 476612, 595765, 942140, 1191530, 2025601, 2383060, 4051202, 8102404, 10128005, 20256010, 40512020]

約数ペア:

[(1, 40512020), (2, 20256010), (4, 10128005), (5, 8102404), (10, 4051202), (17, 2383060), (20, 2025601), (34, 1191530), (43, 942140), (68, 595765), (85, 476612), (86, 471070), (163, 248540), (170, 238306), (172, 235535), (215, 188428), (289, 140180), (326, 124270), (340, 119153), (430, 94214), (578, 70090), (652, 62135), (731, 55420), (815, 49708), (860, 47107), (1156, 35045), (1445, 28036), (1462, 27710), (1630, 24854), (2771, 14620), (2890, 14018), (2924, 13855), (3260, 12427), (3655, 11084), (5542, 7310), (5780, 7009)]