20126725

素因数分解:

$5^2\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{71}}^1$

素因数の和:150

約数の個数: 48

約数和(自身を含む): 28926720

約数和(自身を除く): 8799995

約数列:

[1, 5, 17, 23, 25, 29, 71, 85, 115, 145, 355, 391, 425, 493, 575, 667, 725, 1207, 1633, 1775, 1955, 2059, 2465, 3335, 6035, 8165, 9775, 10295, 11339, 12325, 16675, 27761, 30175, 35003, 40825, 47357, 51475, 56695, 138805, 175015, 236785, 283475, 694025, 805069, 875075, 1183925, 4025345, 20126725]

約数ペア:

[(1, 20126725), (5, 4025345), (17, 1183925), (23, 875075), (25, 805069), (29, 694025), (71, 283475), (85, 236785), (115, 175015), (145, 138805), (355, 56695), (391, 51475), (425, 47357), (493, 40825), (575, 35003), (667, 30175), (725, 27761), (1207, 16675), (1633, 12325), (1775, 11339), (1955, 10295), (2059, 9775), (2465, 8165), (3335, 6035)]