81717390

素因数分解:

$2^1\times 3^3\times 5^1\times {\mathrm{23}}^1\times {\mathrm{13159}}^1$

素因数の和:13198

約数の個数: 64

約数和(自身を含む): 227404800

約数和(自身を除く): 145687410

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 23, 27, 30, 45, 46, 54, 69, 90, 115, 135, 138, 207, 230, 270, 345, 414, 621, 690, 1035, 1242, 2070, 3105, 6210, 13159, 26318, 39477, 65795, 78954, 118431, 131590, 197385, 236862, 302657, 355293, 394770, 592155, 605314, 710586, 907971, 1184310, 1513285, 1776465, 1815942, 2723913, 3026570, 3552930, 4539855, 5447826, 8171739, 9079710, 13619565, 16343478, 27239130, 40858695, 81717390]

約数ペア:

[(1, 81717390), (2, 40858695), (3, 27239130), (5, 16343478), (6, 13619565), (9, 9079710), (10, 8171739), (15, 5447826), (18, 4539855), (23, 3552930), (27, 3026570), (30, 2723913), (45, 1815942), (46, 1776465), (54, 1513285), (69, 1184310), (90, 907971), (115, 710586), (135, 605314), (138, 592155), (207, 394770), (230, 355293), (270, 302657), (345, 236862), (414, 197385), (621, 131590), (690, 118431), (1035, 78954), (1242, 65795), (2070, 39477), (3105, 26318), (6210, 13159)]