28815975

素因数分解:

$3^2\times 5^2\times {\mathrm{89}}^1\times {\mathrm{1439}}^1$

素因数の和:1544

約数の個数: 36

約数和(自身を含む): 52228800

約数和(自身を除く): 23412825

約数列:

[1, 3, 5, 9, 15, 25, 45, 75, 89, 225, 267, 445, 801, 1335, 1439, 2225, 4005, 4317, 6675, 7195, 12951, 20025, 21585, 35975, 64755, 107925, 128071, 323775, 384213, 640355, 1152639, 1921065, 3201775, 5763195, 9605325, 28815975]

約数ペア:

[(1, 28815975), (3, 9605325), (5, 5763195), (9, 3201775), (15, 1921065), (25, 1152639), (45, 640355), (75, 384213), (89, 323775), (225, 128071), (267, 107925), (445, 64755), (801, 35975), (1335, 21585), (1439, 20025), (2225, 12951), (4005, 7195), (4317, 6675)]