21752804060

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{337}}^1\times {\mathrm{409}}^1\times {\mathrm{607}}^1$

素因数の和:1375

約数の個数: 96

約数和(自身を含む): 49542904320

約数和(自身を除く): 27790100260

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 337, 409, 607, 674, 818, 1214, 1348, 1636, 1685, 2045, 2428, 3035, 3370, 4090, 4381, 5317, 6070, 6740, 7891, 8180, 8762, 10634, 12140, 15782, 17524, 21268, 21905, 26585, 31564, 39455, 43810, 53170, 78910, 87620, 106340, 137833, 157820, 204559, 248263, 275666, 409118, 496526, 551332, 689165, 818236, 993052, 1022795, 1241315, 1378330, 1791829, 2045590, 2482630, 2659267, 2756660, 3227419, 3583658, 4091180, 4965260, 5318534, 6454838, 7167316, 8959145, 10637068, 12909676, 13296335, 16137095, 17918290, 26592670, 32274190, 35836580, 53185340, 64548380, 83664631, 167329262, 334658524, 418323155, 836646310, 1087640203, 1673292620, 2175280406, 4350560812, 5438201015, 10876402030, 21752804060]

約数ペア:

[(1, 21752804060), (2, 10876402030), (4, 5438201015), (5, 4350560812), (10, 2175280406), (13, 1673292620), (20, 1087640203), (26, 836646310), (52, 418323155), (65, 334658524), (130, 167329262), (260, 83664631), (337, 64548380), (409, 53185340), (607, 35836580), (674, 32274190), (818, 26592670), (1214, 17918290), (1348, 16137095), (1636, 13296335), (1685, 12909676), (2045, 10637068), (2428, 8959145), (3035, 7167316), (3370, 6454838), (4090, 5318534), (4381, 4965260), (5317, 4091180), (6070, 3583658), (6740, 3227419), (7891, 2756660), (8180, 2659267), (8762, 2482630), (10634, 2045590), (12140, 1791829), (15782, 1378330), (17524, 1241315), (21268, 1022795), (21905, 993052), (26585, 818236), (31564, 689165), (39455, 551332), (43810, 496526), (53170, 409118), (78910, 275666), (87620, 248263), (106340, 204559), (137833, 157820)]