28340325

素因数分解:

$3^2\times 5^2\times {\mathrm{13}}^1\times {\mathrm{9689}}^1$

素因数の和:9718

約数の個数: 36

約数和(自身を含む): 54670980

約数和(自身を除く): 26330655

約数列:

[1, 3, 5, 9, 13, 15, 25, 39, 45, 65, 75, 117, 195, 225, 325, 585, 975, 2925, 9689, 29067, 48445, 87201, 125957, 145335, 242225, 377871, 436005, 629785, 726675, 1133613, 1889355, 2180025, 3148925, 5668065, 9446775, 28340325]

約数ペア:

[(1, 28340325), (3, 9446775), (5, 5668065), (9, 3148925), (13, 2180025), (15, 1889355), (25, 1133613), (39, 726675), (45, 629785), (65, 436005), (75, 377871), (117, 242225), (195, 145335), (225, 125957), (325, 87201), (585, 48445), (975, 29067), (2925, 9689)]