287390220

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{607}}^2$

素因数の和:1239

約数の個数: 72

約数和(自身を含む): 868022064

約数和(自身を除く): 580631844

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 26, 30, 39, 52, 60, 65, 78, 130, 156, 195, 260, 390, 607, 780, 1214, 1821, 2428, 3035, 3642, 6070, 7284, 7891, 9105, 12140, 15782, 18210, 23673, 31564, 36420, 39455, 47346, 78910, 94692, 118365, 157820, 236730, 368449, 473460, 736898, 1105347, 1473796, 1842245, 2210694, 3684490, 4421388, 4789837, 5526735, 7368980, 9579674, 11053470, 14369511, 19159348, 22106940, 23949185, 28739022, 47898370, 57478044, 71847555, 95796740, 143695110, 287390220]

約数ペア:

[(1, 287390220), (2, 143695110), (3, 95796740), (4, 71847555), (5, 57478044), (6, 47898370), (10, 28739022), (12, 23949185), (13, 22106940), (15, 19159348), (20, 14369511), (26, 11053470), (30, 9579674), (39, 7368980), (52, 5526735), (60, 4789837), (65, 4421388), (78, 3684490), (130, 2210694), (156, 1842245), (195, 1473796), (260, 1105347), (390, 736898), (607, 473460), (780, 368449), (1214, 236730), (1821, 157820), (2428, 118365), (3035, 94692), (3642, 78910), (6070, 47346), (7284, 39455), (7891, 36420), (9105, 31564), (12140, 23673), (15782, 18210)]