19887490

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{19}}^2\times {\mathrm{787}}^1$

素因数の和:839

約数の個数: 48

約数和(自身を含む): 43232832

約数和(自身を除く): 23345342

約数列:

[1, 2, 5, 7, 10, 14, 19, 35, 38, 70, 95, 133, 190, 266, 361, 665, 722, 787, 1330, 1574, 1805, 2527, 3610, 3935, 5054, 5509, 7870, 11018, 12635, 14953, 25270, 27545, 29906, 55090, 74765, 104671, 149530, 209342, 284107, 523355, 568214, 1046710, 1420535, 1988749, 2841070, 3977498, 9943745, 19887490]

約数ペア:

[(1, 19887490), (2, 9943745), (5, 3977498), (7, 2841070), (10, 1988749), (14, 1420535), (19, 1046710), (35, 568214), (38, 523355), (70, 284107), (95, 209342), (133, 149530), (190, 104671), (266, 74765), (361, 55090), (665, 29906), (722, 27545), (787, 25270), (1330, 14953), (1574, 12635), (1805, 11018), (2527, 7870), (3610, 5509), (3935, 5054)]