81477240

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{1801}}^1$

素因数の和:1857

約数の個数: 128

約数和(自身を含む): 272462400

約数和(自身を除く): 190985160

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 20, 24, 26, 29, 30, 39, 40, 52, 58, 60, 65, 78, 87, 104, 116, 120, 130, 145, 156, 174, 195, 232, 260, 290, 312, 348, 377, 390, 435, 520, 580, 696, 754, 780, 870, 1131, 1160, 1508, 1560, 1740, 1801, 1885, 2262, 3016, 3480, 3602, 3770, 4524, 5403, 5655, 7204, 7540, 9005, 9048, 10806, 11310, 14408, 15080, 18010, 21612, 22620, 23413, 27015, 36020, 43224, 45240, 46826, 52229, 54030, 70239, 72040, 93652, 104458, 108060, 117065, 140478, 156687, 187304, 208916, 216120, 234130, 261145, 280956, 313374, 351195, 417832, 468260, 522290, 561912, 626748, 678977, 702390, 783435, 936520, 1044580, 1253496, 1357954, 1404780, 1566870, 2036931, 2089160, 2715908, 2809560, 3133740, 3394885, 4073862, 5431816, 6267480, 6789770, 8147724, 10184655, 13579540, 16295448, 20369310, 27159080, 40738620, 81477240]

約数ペア:

[(1, 81477240), (2, 40738620), (3, 27159080), (4, 20369310), (5, 16295448), (6, 13579540), (8, 10184655), (10, 8147724), (12, 6789770), (13, 6267480), (15, 5431816), (20, 4073862), (24, 3394885), (26, 3133740), (29, 2809560), (30, 2715908), (39, 2089160), (40, 2036931), (52, 1566870), (58, 1404780), (60, 1357954), (65, 1253496), (78, 1044580), (87, 936520), (104, 783435), (116, 702390), (120, 678977), (130, 626748), (145, 561912), (156, 522290), (174, 468260), (195, 417832), (232, 351195), (260, 313374), (290, 280956), (312, 261145), (348, 234130), (377, 216120), (390, 208916), (435, 187304), (520, 156687), (580, 140478), (696, 117065), (754, 108060), (780, 104458), (870, 93652), (1131, 72040), (1160, 70239), (1508, 54030), (1560, 52229), (1740, 46826), (1801, 45240), (1885, 43224), (2262, 36020), (3016, 27015), (3480, 23413), (3602, 22620), (3770, 21612), (4524, 18010), (5403, 15080), (5655, 14408), (7204, 11310), (7540, 10806), (9005, 9048)]