30784720

素因数分解:

$2^4\times 5^1\times {\mathrm{79}}^1\times {\mathrm{4871}}^1$

素因数の和:4963

約数の個数: 40

約数和(自身を含む): 72495360

約数和(自身を除く): 41710640

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 79, 80, 158, 316, 395, 632, 790, 1264, 1580, 3160, 4871, 6320, 9742, 19484, 24355, 38968, 48710, 77936, 97420, 194840, 384809, 389680, 769618, 1539236, 1924045, 3078472, 3848090, 6156944, 7696180, 15392360, 30784720]

約数ペア:

[(1, 30784720), (2, 15392360), (4, 7696180), (5, 6156944), (8, 3848090), (10, 3078472), (16, 1924045), (20, 1539236), (40, 769618), (79, 389680), (80, 384809), (158, 194840), (316, 97420), (395, 77936), (632, 48710), (790, 38968), (1264, 24355), (1580, 19484), (3160, 9742), (4871, 6320)]