8638540

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{127}}^1\times {\mathrm{179}}^1$

素因数の和:334

約数の個数: 48

約数和(自身を含む): 19353600

約数和(自身を除く): 10715060

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 127, 179, 190, 254, 358, 380, 508, 635, 716, 895, 1270, 1790, 2413, 2540, 3401, 3580, 4826, 6802, 9652, 12065, 13604, 17005, 22733, 24130, 34010, 45466, 48260, 68020, 90932, 113665, 227330, 431927, 454660, 863854, 1727708, 2159635, 4319270, 8638540]

約数ペア:

[(1, 8638540), (2, 4319270), (4, 2159635), (5, 1727708), (10, 863854), (19, 454660), (20, 431927), (38, 227330), (76, 113665), (95, 90932), (127, 68020), (179, 48260), (190, 45466), (254, 34010), (358, 24130), (380, 22733), (508, 17005), (635, 13604), (716, 12065), (895, 9652), (1270, 6802), (1790, 4826), (2413, 3580), (2540, 3401)]