257513100

素因数分解:

$2^2\times 3^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{66029}}^1$

素因数の和:66059

約数の個数: 72

約数和(自身を含む): 802396560

約数和(自身を除く): 544883460

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 25, 26, 30, 39, 50, 52, 60, 65, 75, 78, 100, 130, 150, 156, 195, 260, 300, 325, 390, 650, 780, 975, 1300, 1950, 3900, 66029, 132058, 198087, 264116, 330145, 396174, 660290, 792348, 858377, 990435, 1320580, 1650725, 1716754, 1980870, 2575131, 3301450, 3433508, 3961740, 4291885, 4952175, 5150262, 6602900, 8583770, 9904350, 10300524, 12875655, 17167540, 19808700, 21459425, 25751310, 42918850, 51502620, 64378275, 85837700, 128756550, 257513100]

約数ペア:

[(1, 257513100), (2, 128756550), (3, 85837700), (4, 64378275), (5, 51502620), (6, 42918850), (10, 25751310), (12, 21459425), (13, 19808700), (15, 17167540), (20, 12875655), (25, 10300524), (26, 9904350), (30, 8583770), (39, 6602900), (50, 5150262), (52, 4952175), (60, 4291885), (65, 3961740), (75, 3433508), (78, 3301450), (100, 2575131), (130, 1980870), (150, 1716754), (156, 1650725), (195, 1320580), (260, 990435), (300, 858377), (325, 792348), (390, 660290), (650, 396174), (780, 330145), (975, 264116), (1300, 198087), (1950, 132058), (3900, 66029)]