81875640

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{8861}}^1$

素因数の和:8893

約数の個数: 128

約数和(自身を含む): 306270720

約数和(自身を除く): 224395080

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 11, 12, 14, 15, 20, 21, 22, 24, 28, 30, 33, 35, 40, 42, 44, 55, 56, 60, 66, 70, 77, 84, 88, 105, 110, 120, 132, 140, 154, 165, 168, 210, 220, 231, 264, 280, 308, 330, 385, 420, 440, 462, 616, 660, 770, 840, 924, 1155, 1320, 1540, 1848, 2310, 3080, 4620, 8861, 9240, 17722, 26583, 35444, 44305, 53166, 62027, 70888, 88610, 97471, 106332, 124054, 132915, 177220, 186081, 194942, 212664, 248108, 265830, 292413, 310135, 354440, 372162, 389884, 487355, 496216, 531660, 584826, 620270, 682297, 744324, 779768, 930405, 974710, 1063320, 1169652, 1240540, 1364594, 1462065, 1488648, 1860810, 1949420, 2046891, 2339304, 2481080, 2729188, 2924130, 3411485, 3721620, 3898840, 4093782, 5458376, 5848260, 6822970, 7443240, 8187564, 10234455, 11696520, 13645940, 16375128, 20468910, 27291880, 40937820, 81875640]

約数ペア:

[(1, 81875640), (2, 40937820), (3, 27291880), (4, 20468910), (5, 16375128), (6, 13645940), (7, 11696520), (8, 10234455), (10, 8187564), (11, 7443240), (12, 6822970), (14, 5848260), (15, 5458376), (20, 4093782), (21, 3898840), (22, 3721620), (24, 3411485), (28, 2924130), (30, 2729188), (33, 2481080), (35, 2339304), (40, 2046891), (42, 1949420), (44, 1860810), (55, 1488648), (56, 1462065), (60, 1364594), (66, 1240540), (70, 1169652), (77, 1063320), (84, 974710), (88, 930405), (105, 779768), (110, 744324), (120, 682297), (132, 620270), (140, 584826), (154, 531660), (165, 496216), (168, 487355), (210, 389884), (220, 372162), (231, 354440), (264, 310135), (280, 292413), (308, 265830), (330, 248108), (385, 212664), (420, 194942), (440, 186081), (462, 177220), (616, 132915), (660, 124054), (770, 106332), (840, 97471), (924, 88610), (1155, 70888), (1320, 62027), (1540, 53166), (1848, 44305), (2310, 35444), (3080, 26583), (4620, 17722), (8861, 9240)]