15831540

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{281}}^1\times {\mathrm{313}}^1$

素因数の和:609

約数の個数: 72

約数和(自身を含む): 48347208

約数和(自身を除く): 32515668

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 281, 313, 562, 626, 843, 939, 1124, 1252, 1405, 1565, 1686, 1878, 2529, 2810, 2817, 3130, 3372, 3756, 4215, 4695, 5058, 5620, 5634, 6260, 8430, 9390, 10116, 11268, 12645, 14085, 16860, 18780, 25290, 28170, 50580, 56340, 87953, 175906, 263859, 351812, 439765, 527718, 791577, 879530, 1055436, 1319295, 1583154, 1759060, 2638590, 3166308, 3957885, 5277180, 7915770, 15831540]

約数ペア:

[(1, 15831540), (2, 7915770), (3, 5277180), (4, 3957885), (5, 3166308), (6, 2638590), (9, 1759060), (10, 1583154), (12, 1319295), (15, 1055436), (18, 879530), (20, 791577), (30, 527718), (36, 439765), (45, 351812), (60, 263859), (90, 175906), (180, 87953), (281, 56340), (313, 50580), (562, 28170), (626, 25290), (843, 18780), (939, 16860), (1124, 14085), (1252, 12645), (1405, 11268), (1565, 10116), (1686, 9390), (1878, 8430), (2529, 6260), (2810, 5634), (2817, 5620), (3130, 5058), (3372, 4695), (3756, 4215)]