12691280

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{131}}^1\times {\mathrm{173}}^1$

素因数の和:324

約数の個数: 80

約数和(自身を含む): 34176384

約数和(自身を除く): 21485104

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 131, 140, 173, 262, 280, 346, 524, 560, 655, 692, 865, 917, 1048, 1211, 1310, 1384, 1730, 1834, 2096, 2422, 2620, 2768, 3460, 3668, 4585, 4844, 5240, 6055, 6920, 7336, 9170, 9688, 10480, 12110, 13840, 14672, 18340, 19376, 22663, 24220, 36680, 45326, 48440, 73360, 90652, 96880, 113315, 158641, 181304, 226630, 317282, 362608, 453260, 634564, 793205, 906520, 1269128, 1586410, 1813040, 2538256, 3172820, 6345640, 12691280]

約数ペア:

[(1, 12691280), (2, 6345640), (4, 3172820), (5, 2538256), (7, 1813040), (8, 1586410), (10, 1269128), (14, 906520), (16, 793205), (20, 634564), (28, 453260), (35, 362608), (40, 317282), (56, 226630), (70, 181304), (80, 158641), (112, 113315), (131, 96880), (140, 90652), (173, 73360), (262, 48440), (280, 45326), (346, 36680), (524, 24220), (560, 22663), (655, 19376), (692, 18340), (865, 14672), (917, 13840), (1048, 12110), (1211, 10480), (1310, 9688), (1384, 9170), (1730, 7336), (1834, 6920), (2096, 6055), (2422, 5240), (2620, 4844), (2768, 4585), (3460, 3668)]