25978225

素因数分解:

$5^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{601}}^1$

素因数の和:650

約数の個数: 48

約数和(自身を含む): 41802880

約数和(自身を除く): 15824655

約数列:

[1, 5, 7, 13, 19, 25, 35, 65, 91, 95, 133, 175, 247, 325, 455, 475, 601, 665, 1235, 1729, 2275, 3005, 3325, 4207, 6175, 7813, 8645, 11419, 15025, 21035, 39065, 43225, 54691, 57095, 79933, 105175, 148447, 195325, 273455, 285475, 399665, 742235, 1039129, 1367275, 1998325, 3711175, 5195645, 25978225]

約数ペア:

[(1, 25978225), (5, 5195645), (7, 3711175), (13, 1998325), (19, 1367275), (25, 1039129), (35, 742235), (65, 399665), (91, 285475), (95, 273455), (133, 195325), (175, 148447), (247, 105175), (325, 79933), (455, 57095), (475, 54691), (601, 43225), (665, 39065), (1235, 21035), (1729, 15025), (2275, 11419), (3005, 8645), (3325, 7813), (4207, 6175)]