6403780

素因数分解:

$2^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{61}}^1\times {\mathrm{181}}^1$

素因数の和:280

約数の個数: 48

約数和(自身を含む): 14217840

約数和(自身を除く): 7814060

約数列:

[1, 2, 4, 5, 10, 20, 29, 58, 61, 116, 122, 145, 181, 244, 290, 305, 362, 580, 610, 724, 905, 1220, 1769, 1810, 3538, 3620, 5249, 7076, 8845, 10498, 11041, 17690, 20996, 22082, 26245, 35380, 44164, 52490, 55205, 104980, 110410, 220820, 320189, 640378, 1280756, 1600945, 3201890, 6403780]

約数ペア:

[(1, 6403780), (2, 3201890), (4, 1600945), (5, 1280756), (10, 640378), (20, 320189), (29, 220820), (58, 110410), (61, 104980), (116, 55205), (122, 52490), (145, 44164), (181, 35380), (244, 26245), (290, 22082), (305, 20996), (362, 17690), (580, 11041), (610, 10498), (724, 8845), (905, 7076), (1220, 5249), (1769, 3620), (1810, 3538)]