20179242525

素因数分解:

$3^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{390503}}^1$

素因数の和:390582

約数の個数: 48

約数和(自身を含む): 36607406976

約数和(自身を除く): 16428164451

約数列:

[1, 3, 5, 13, 15, 25, 39, 53, 65, 75, 159, 195, 265, 325, 689, 795, 975, 1325, 2067, 3445, 3975, 10335, 17225, 51675, 390503, 1171509, 1952515, 5076539, 5857545, 9762575, 15229617, 20696659, 25382695, 29287725, 62089977, 76148085, 103483295, 126913475, 269056567, 310449885, 380740425, 517416475, 807169701, 1345282835, 1552249425, 4035848505, 6726414175, 20179242525]

約数ペア:

[(1, 20179242525), (3, 6726414175), (5, 4035848505), (13, 1552249425), (15, 1345282835), (25, 807169701), (39, 517416475), (53, 380740425), (65, 310449885), (75, 269056567), (159, 126913475), (195, 103483295), (265, 76148085), (325, 62089977), (689, 29287725), (795, 25382695), (975, 20696659), (1325, 15229617), (2067, 9762575), (3445, 5857545), (3975, 5076539), (10335, 1952515), (17225, 1171509), (51675, 390503)]