81063540

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{6343}}^1$

素因数の和:6429

約数の個数: 72

約数和(自身を含む): 249395328

約数和(自身を除く): 168331788

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 71, 90, 142, 180, 213, 284, 355, 426, 639, 710, 852, 1065, 1278, 1420, 2130, 2556, 3195, 4260, 6343, 6390, 12686, 12780, 19029, 25372, 31715, 38058, 57087, 63430, 76116, 95145, 114174, 126860, 190290, 228348, 285435, 380580, 450353, 570870, 900706, 1141740, 1351059, 1801412, 2251765, 2702118, 4053177, 4503530, 5404236, 6755295, 8106354, 9007060, 13510590, 16212708, 20265885, 27021180, 40531770, 81063540]

約数ペア:

[(1, 81063540), (2, 40531770), (3, 27021180), (4, 20265885), (5, 16212708), (6, 13510590), (9, 9007060), (10, 8106354), (12, 6755295), (15, 5404236), (18, 4503530), (20, 4053177), (30, 2702118), (36, 2251765), (45, 1801412), (60, 1351059), (71, 1141740), (90, 900706), (142, 570870), (180, 450353), (213, 380580), (284, 285435), (355, 228348), (426, 190290), (639, 126860), (710, 114174), (852, 95145), (1065, 76116), (1278, 63430), (1420, 57087), (2130, 38058), (2556, 31715), (3195, 25372), (4260, 19029), (6343, 12780), (6390, 12686)]