20171120925

素因数分解:

$3^1\times 5^2\times {\mathrm{17}}^1\times {\mathrm{73}}^1\times {\mathrm{216719}}^1$

素因数の和:216822

約数の個数: 48

約数和(自身を含む): 35795208960

約数和(自身を除く): 15624088035

約数列:

[1, 3, 5, 15, 17, 25, 51, 73, 75, 85, 219, 255, 365, 425, 1095, 1241, 1275, 1825, 3723, 5475, 6205, 18615, 31025, 93075, 216719, 650157, 1083595, 3250785, 3684223, 5417975, 11052669, 15820487, 16253925, 18421115, 47461461, 55263345, 79102435, 92105575, 237307305, 268948279, 276316725, 395512175, 806844837, 1186536525, 1344741395, 4034224185, 6723706975, 20171120925]

約数ペア:

[(1, 20171120925), (3, 6723706975), (5, 4034224185), (15, 1344741395), (17, 1186536525), (25, 806844837), (51, 395512175), (73, 276316725), (75, 268948279), (85, 237307305), (219, 92105575), (255, 79102435), (365, 55263345), (425, 47461461), (1095, 18421115), (1241, 16253925), (1275, 15820487), (1825, 11052669), (3723, 5417975), (5475, 3684223), (6205, 3250785), (18615, 1083595), (31025, 650157), (93075, 216719)]