64843660

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{127}}^1\times {\mathrm{521}}^1$

素因数の和:671

約数の個数: 72

約数和(自身を含む): 159957504

約数和(自身を除く): 95113844

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 127, 140, 196, 245, 254, 490, 508, 521, 635, 889, 980, 1042, 1270, 1778, 2084, 2540, 2605, 3556, 3647, 4445, 5210, 6223, 7294, 8890, 10420, 12446, 14588, 17780, 18235, 24892, 25529, 31115, 36470, 51058, 62230, 66167, 72940, 102116, 124460, 127645, 132334, 255290, 264668, 330835, 463169, 510580, 661670, 926338, 1323340, 1852676, 2315845, 3242183, 4631690, 6484366, 9263380, 12968732, 16210915, 32421830, 64843660]

約数ペア:

[(1, 64843660), (2, 32421830), (4, 16210915), (5, 12968732), (7, 9263380), (10, 6484366), (14, 4631690), (20, 3242183), (28, 2315845), (35, 1852676), (49, 1323340), (70, 926338), (98, 661670), (127, 510580), (140, 463169), (196, 330835), (245, 264668), (254, 255290), (490, 132334), (508, 127645), (521, 124460), (635, 102116), (889, 72940), (980, 66167), (1042, 62230), (1270, 51058), (1778, 36470), (2084, 31115), (2540, 25529), (2605, 24892), (3556, 18235), (3647, 17780), (4445, 14588), (5210, 12446), (6223, 10420), (7294, 8890)]