15988491540

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{12689279}}^1$

素因数の和:12689301

約数の個数: 72

約数和(自身を含む): 55426775040

約数和(自身を除く): 39438283500

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 35, 36, 42, 45, 60, 63, 70, 84, 90, 105, 126, 140, 180, 210, 252, 315, 420, 630, 1260, 12689279, 25378558, 38067837, 50757116, 63446395, 76135674, 88824953, 114203511, 126892790, 152271348, 177649906, 190339185, 228407022, 253785580, 266474859, 355299812, 380678370, 444124765, 456814044, 532949718, 571017555, 761356740, 799424577, 888249530, 1065899436, 1142035110, 1332374295, 1598849154, 1776499060, 2284070220, 2664748590, 3197698308, 3997122885, 5329497180, 7994245770, 15988491540]

約数ペア:

[(1, 15988491540), (2, 7994245770), (3, 5329497180), (4, 3997122885), (5, 3197698308), (6, 2664748590), (7, 2284070220), (9, 1776499060), (10, 1598849154), (12, 1332374295), (14, 1142035110), (15, 1065899436), (18, 888249530), (20, 799424577), (21, 761356740), (28, 571017555), (30, 532949718), (35, 456814044), (36, 444124765), (42, 380678370), (45, 355299812), (60, 266474859), (63, 253785580), (70, 228407022), (84, 190339185), (90, 177649906), (105, 152271348), (126, 126892790), (140, 114203511), (180, 88824953), (210, 76135674), (252, 63446395), (315, 50757116), (420, 38067837), (630, 25378558), (1260, 12689279)]