31298520

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{131}}^1\times {\mathrm{181}}^1$

素因数の和:337

約数の個数: 128

約数和(自身を含む): 103783680

約数和(自身を除く): 72485160

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 11, 12, 15, 20, 22, 24, 30, 33, 40, 44, 55, 60, 66, 88, 110, 120, 131, 132, 165, 181, 220, 262, 264, 330, 362, 393, 440, 524, 543, 655, 660, 724, 786, 905, 1048, 1086, 1310, 1320, 1441, 1448, 1572, 1810, 1965, 1991, 2172, 2620, 2715, 2882, 3144, 3620, 3930, 3982, 4323, 4344, 5240, 5430, 5764, 5973, 7205, 7240, 7860, 7964, 8646, 9955, 10860, 11528, 11946, 14410, 15720, 15928, 17292, 19910, 21615, 21720, 23711, 23892, 28820, 29865, 34584, 39820, 43230, 47422, 47784, 57640, 59730, 71133, 79640, 86460, 94844, 118555, 119460, 142266, 172920, 189688, 237110, 238920, 260821, 284532, 355665, 474220, 521642, 569064, 711330, 782463, 948440, 1043284, 1304105, 1422660, 1564926, 2086568, 2608210, 2845320, 3129852, 3912315, 5216420, 6259704, 7824630, 10432840, 15649260, 31298520]

約数ペア:

[(1, 31298520), (2, 15649260), (3, 10432840), (4, 7824630), (5, 6259704), (6, 5216420), (8, 3912315), (10, 3129852), (11, 2845320), (12, 2608210), (15, 2086568), (20, 1564926), (22, 1422660), (24, 1304105), (30, 1043284), (33, 948440), (40, 782463), (44, 711330), (55, 569064), (60, 521642), (66, 474220), (88, 355665), (110, 284532), (120, 260821), (131, 238920), (132, 237110), (165, 189688), (181, 172920), (220, 142266), (262, 119460), (264, 118555), (330, 94844), (362, 86460), (393, 79640), (440, 71133), (524, 59730), (543, 57640), (655, 47784), (660, 47422), (724, 43230), (786, 39820), (905, 34584), (1048, 29865), (1086, 28820), (1310, 23892), (1320, 23711), (1441, 21720), (1448, 21615), (1572, 19910), (1810, 17292), (1965, 15928), (1991, 15720), (2172, 14410), (2620, 11946), (2715, 11528), (2882, 10860), (3144, 9955), (3620, 8646), (3930, 7964), (3982, 7860), (4323, 7240), (4344, 7205), (5240, 5973), (5430, 5764)]