11970380

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^2\times {\mathrm{19}}^1\times {\mathrm{109}}^1$

素因数の和:171

約数の個数: 72

約数和(自身を含む): 28366800

約数和(自身を除く): 16396420

約数列:

[1, 2, 4, 5, 10, 17, 19, 20, 34, 38, 68, 76, 85, 95, 109, 170, 190, 218, 289, 323, 340, 380, 436, 545, 578, 646, 1090, 1156, 1292, 1445, 1615, 1853, 2071, 2180, 2890, 3230, 3706, 4142, 5491, 5780, 6460, 7412, 8284, 9265, 10355, 10982, 18530, 20710, 21964, 27455, 31501, 35207, 37060, 41420, 54910, 63002, 70414, 109820, 126004, 140828, 157505, 176035, 315010, 352070, 598519, 630020, 704140, 1197038, 2394076, 2992595, 5985190, 11970380]

約数ペア:

[(1, 11970380), (2, 5985190), (4, 2992595), (5, 2394076), (10, 1197038), (17, 704140), (19, 630020), (20, 598519), (34, 352070), (38, 315010), (68, 176035), (76, 157505), (85, 140828), (95, 126004), (109, 109820), (170, 70414), (190, 63002), (218, 54910), (289, 41420), (323, 37060), (340, 35207), (380, 31501), (436, 27455), (545, 21964), (578, 20710), (646, 18530), (1090, 10982), (1156, 10355), (1292, 9265), (1445, 8284), (1615, 7412), (1853, 6460), (2071, 5780), (2180, 5491), (2890, 4142), (3230, 3706)]