64990880

素因数分解:

$2^5\times 5^1\times {\mathrm{31}}^1\times {\mathrm{13103}}^1$

素因数の和:13149

約数の個数: 48

約数和(自身を含む): 158505984

約数和(自身を除く): 93515104

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 62, 80, 124, 155, 160, 248, 310, 496, 620, 992, 1240, 2480, 4960, 13103, 26206, 52412, 65515, 104824, 131030, 209648, 262060, 406193, 419296, 524120, 812386, 1048240, 1624772, 2030965, 2096480, 3249544, 4061930, 6499088, 8123860, 12998176, 16247720, 32495440, 64990880]

約数ペア:

[(1, 64990880), (2, 32495440), (4, 16247720), (5, 12998176), (8, 8123860), (10, 6499088), (16, 4061930), (20, 3249544), (31, 2096480), (32, 2030965), (40, 1624772), (62, 1048240), (80, 812386), (124, 524120), (155, 419296), (160, 406193), (248, 262060), (310, 209648), (496, 131030), (620, 104824), (992, 65515), (1240, 52412), (2480, 26206), (4960, 13103)]