81591354

素因数分解:

$2^1\times 3^3\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{1637}}^1$

素因数の和:1732

約数の個数: 64

約数和(自身を含む): 198132480

約数和(自身を除く): 116541126

約数列:

[1, 2, 3, 6, 9, 13, 18, 26, 27, 39, 54, 71, 78, 117, 142, 213, 234, 351, 426, 639, 702, 923, 1278, 1637, 1846, 1917, 2769, 3274, 3834, 4911, 5538, 8307, 9822, 14733, 16614, 21281, 24921, 29466, 42562, 44199, 49842, 63843, 88398, 116227, 127686, 191529, 232454, 348681, 383058, 574587, 697362, 1046043, 1149174, 1510951, 2092086, 3021902, 3138129, 4532853, 6276258, 9065706, 13598559, 27197118, 40795677, 81591354]

約数ペア:

[(1, 81591354), (2, 40795677), (3, 27197118), (6, 13598559), (9, 9065706), (13, 6276258), (18, 4532853), (26, 3138129), (27, 3021902), (39, 2092086), (54, 1510951), (71, 1149174), (78, 1046043), (117, 697362), (142, 574587), (213, 383058), (234, 348681), (351, 232454), (426, 191529), (639, 127686), (702, 116227), (923, 88398), (1278, 63843), (1637, 49842), (1846, 44199), (1917, 42562), (2769, 29466), (3274, 24921), (3834, 21281), (4911, 16614), (5538, 14733), (8307, 9822)]