20512474575

素因数分解:

$3^1\times 5^2\times {\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{235979}}^1$

素因数の和:236072

約数の個数: 48

約数和(自身を含む): 36284284800

約数和(自身を除く): 15771810225

約数列:

[1, 3, 5, 15, 19, 25, 57, 61, 75, 95, 183, 285, 305, 475, 915, 1159, 1425, 1525, 3477, 4575, 5795, 17385, 28975, 86925, 235979, 707937, 1179895, 3539685, 4483601, 5899475, 13450803, 14394719, 17698425, 22418005, 43184157, 67254015, 71973595, 112090025, 215920785, 273499661, 336270075, 359867975, 820498983, 1079603925, 1367498305, 4102494915, 6837491525, 20512474575]

約数ペア:

[(1, 20512474575), (3, 6837491525), (5, 4102494915), (15, 1367498305), (19, 1079603925), (25, 820498983), (57, 359867975), (61, 336270075), (75, 273499661), (95, 215920785), (183, 112090025), (285, 71973595), (305, 67254015), (475, 43184157), (915, 22418005), (1159, 17698425), (1425, 14394719), (1525, 13450803), (3477, 5899475), (4575, 4483601), (5795, 3539685), (17385, 1179895), (28975, 707937), (86925, 235979)]