20746050

素因数分解:

$2^1\times 3^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{10639}}^1$

素因数の和:10667

約数の個数: 48

約数和(自身を含む): 55413120

約数和(自身を除く): 34667070

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 25, 26, 30, 39, 50, 65, 75, 78, 130, 150, 195, 325, 390, 650, 975, 1950, 10639, 21278, 31917, 53195, 63834, 106390, 138307, 159585, 265975, 276614, 319170, 414921, 531950, 691535, 797925, 829842, 1383070, 1595850, 2074605, 3457675, 4149210, 6915350, 10373025, 20746050]

約数ペア:

[(1, 20746050), (2, 10373025), (3, 6915350), (5, 4149210), (6, 3457675), (10, 2074605), (13, 1595850), (15, 1383070), (25, 829842), (26, 797925), (30, 691535), (39, 531950), (50, 414921), (65, 319170), (75, 276614), (78, 265975), (130, 159585), (150, 138307), (195, 106390), (325, 63834), (390, 53195), (650, 31917), (975, 21278), (1950, 10639)]