81283020

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{14887}}^1$

素因数の和:14919

約数の個数: 96

約数和(自身を含む): 280132608

約数和(自身を除く): 198849588

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 13, 14, 15, 20, 21, 26, 28, 30, 35, 39, 42, 52, 60, 65, 70, 78, 84, 91, 105, 130, 140, 156, 182, 195, 210, 260, 273, 364, 390, 420, 455, 546, 780, 910, 1092, 1365, 1820, 2730, 5460, 14887, 29774, 44661, 59548, 74435, 89322, 104209, 148870, 178644, 193531, 208418, 223305, 297740, 312627, 387062, 416836, 446610, 521045, 580593, 625254, 774124, 893220, 967655, 1042090, 1161186, 1250508, 1354717, 1563135, 1935310, 2084180, 2322372, 2709434, 2902965, 3126270, 3870620, 4064151, 5418868, 5805930, 6252540, 6773585, 8128302, 11611860, 13547170, 16256604, 20320755, 27094340, 40641510, 81283020]

約数ペア:

[(1, 81283020), (2, 40641510), (3, 27094340), (4, 20320755), (5, 16256604), (6, 13547170), (7, 11611860), (10, 8128302), (12, 6773585), (13, 6252540), (14, 5805930), (15, 5418868), (20, 4064151), (21, 3870620), (26, 3126270), (28, 2902965), (30, 2709434), (35, 2322372), (39, 2084180), (42, 1935310), (52, 1563135), (60, 1354717), (65, 1250508), (70, 1161186), (78, 1042090), (84, 967655), (91, 893220), (105, 774124), (130, 625254), (140, 580593), (156, 521045), (182, 446610), (195, 416836), (210, 387062), (260, 312627), (273, 297740), (364, 223305), (390, 208418), (420, 193531), (455, 178644), (546, 148870), (780, 104209), (910, 89322), (1092, 74435), (1365, 59548), (1820, 44661), (2730, 29774), (5460, 14887)]