28762875

素因数分解:

$3^2\times 5^3\times {\mathrm{37}}^1\times {\mathrm{691}}^1$

素因数の和:749

約数の個数: 48

約数和(自身を含む): 53328288

約数和(自身を除く): 24565413

約数列:

[1, 3, 5, 9, 15, 25, 37, 45, 75, 111, 125, 185, 225, 333, 375, 555, 691, 925, 1125, 1665, 2073, 2775, 3455, 4625, 6219, 8325, 10365, 13875, 17275, 25567, 31095, 41625, 51825, 76701, 86375, 127835, 155475, 230103, 259125, 383505, 639175, 777375, 1150515, 1917525, 3195875, 5752575, 9587625, 28762875]

約数ペア:

[(1, 28762875), (3, 9587625), (5, 5752575), (9, 3195875), (15, 1917525), (25, 1150515), (37, 777375), (45, 639175), (75, 383505), (111, 259125), (125, 230103), (185, 155475), (225, 127835), (333, 86375), (375, 76701), (555, 51825), (691, 41625), (925, 31095), (1125, 25567), (1665, 17275), (2073, 13875), (2775, 10365), (3455, 8325), (4625, 6219)]