620775

素因数分解:

$3^2\times 5^2\times {\mathrm{31}}^1\times {\mathrm{89}}^1$

素因数の和:136

約数の個数: 36

約数和(自身を含む): 1160640

約数和(自身を除く): 539865

約数列:

[1, 3, 5, 9, 15, 25, 31, 45, 75, 89, 93, 155, 225, 267, 279, 445, 465, 775, 801, 1335, 1395, 2225, 2325, 2759, 4005, 6675, 6975, 8277, 13795, 20025, 24831, 41385, 68975, 124155, 206925, 620775]

約数ペア:

[(1, 620775), (3, 206925), (5, 124155), (9, 68975), (15, 41385), (25, 24831), (31, 20025), (45, 13795), (75, 8277), (89, 6975), (93, 6675), (155, 4005), (225, 2759), (267, 2325), (279, 2225), (445, 1395), (465, 1335), (775, 801)]