156758120

素因数分解:

$2^3\times 5^1\times {\mathrm{79}}^1\times {\mathrm{113}}^1\times {\mathrm{439}}^1$

素因数の和:642

約数の個数: 64

約数和(自身を含む): 361152000

約数和(自身を除く): 204393880

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 79, 113, 158, 226, 316, 395, 439, 452, 565, 632, 790, 878, 904, 1130, 1580, 1756, 2195, 2260, 3160, 3512, 4390, 4520, 8780, 8927, 17560, 17854, 34681, 35708, 44635, 49607, 69362, 71416, 89270, 99214, 138724, 173405, 178540, 198428, 248035, 277448, 346810, 357080, 396856, 496070, 693620, 992140, 1387240, 1984280, 3918953, 7837906, 15675812, 19594765, 31351624, 39189530, 78379060, 156758120]

約数ペア:

[(1, 156758120), (2, 78379060), (4, 39189530), (5, 31351624), (8, 19594765), (10, 15675812), (20, 7837906), (40, 3918953), (79, 1984280), (113, 1387240), (158, 992140), (226, 693620), (316, 496070), (395, 396856), (439, 357080), (452, 346810), (565, 277448), (632, 248035), (790, 198428), (878, 178540), (904, 173405), (1130, 138724), (1580, 99214), (1756, 89270), (2195, 71416), (2260, 69362), (3160, 49607), (3512, 44635), (4390, 35708), (4520, 34681), (8780, 17854), (8927, 17560)]