20367880

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^2\times {\mathrm{23}}^1\times {\mathrm{131}}^1$

素因数の和:191

約数の個数: 96

約数和(自身を含む): 52176960

約数和(自身を除く): 31809080

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 23, 26, 40, 46, 52, 65, 92, 104, 115, 130, 131, 169, 184, 230, 260, 262, 299, 338, 460, 520, 524, 598, 655, 676, 845, 920, 1048, 1196, 1310, 1352, 1495, 1690, 1703, 2392, 2620, 2990, 3013, 3380, 3406, 3887, 5240, 5980, 6026, 6760, 6812, 7774, 8515, 11960, 12052, 13624, 15065, 15548, 17030, 19435, 22139, 24104, 30130, 31096, 34060, 38870, 39169, 44278, 60260, 68120, 77740, 78338, 88556, 110695, 120520, 155480, 156676, 177112, 195845, 221390, 313352, 391690, 442780, 509197, 783380, 885560, 1018394, 1566760, 2036788, 2545985, 4073576, 5091970, 10183940, 20367880]

約数ペア:

[(1, 20367880), (2, 10183940), (4, 5091970), (5, 4073576), (8, 2545985), (10, 2036788), (13, 1566760), (20, 1018394), (23, 885560), (26, 783380), (40, 509197), (46, 442780), (52, 391690), (65, 313352), (92, 221390), (104, 195845), (115, 177112), (130, 156676), (131, 155480), (169, 120520), (184, 110695), (230, 88556), (260, 78338), (262, 77740), (299, 68120), (338, 60260), (460, 44278), (520, 39169), (524, 38870), (598, 34060), (655, 31096), (676, 30130), (845, 24104), (920, 22139), (1048, 19435), (1196, 17030), (1310, 15548), (1352, 15065), (1495, 13624), (1690, 12052), (1703, 11960), (2392, 8515), (2620, 7774), (2990, 6812), (3013, 6760), (3380, 6026), (3406, 5980), (3887, 5240)]