28640950

素因数分解:

$2^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{139}}^1\times {\mathrm{317}}^1$

素因数の和:481

約数の個数: 48

約数和(自身を含む): 57965040

約数和(自身を除く): 29324090

約数列:

[1, 2, 5, 10, 13, 25, 26, 50, 65, 130, 139, 278, 317, 325, 634, 650, 695, 1390, 1585, 1807, 3170, 3475, 3614, 4121, 6950, 7925, 8242, 9035, 15850, 18070, 20605, 41210, 44063, 45175, 88126, 90350, 103025, 206050, 220315, 440630, 572819, 1101575, 1145638, 2203150, 2864095, 5728190, 14320475, 28640950]

約数ペア:

[(1, 28640950), (2, 14320475), (5, 5728190), (10, 2864095), (13, 2203150), (25, 1145638), (26, 1101575), (50, 572819), (65, 440630), (130, 220315), (139, 206050), (278, 103025), (317, 90350), (325, 88126), (634, 45175), (650, 44063), (695, 41210), (1390, 20605), (1585, 18070), (1807, 15850), (3170, 9035), (3475, 8242), (3614, 7925), (4121, 6950)]