28378420

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{61}}^1\times {\mathrm{3323}}^1$

素因数の和:3400

約数の個数: 48

約数和(自身を含む): 69245568

約数和(自身を除く): 40867148

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 61, 70, 122, 140, 244, 305, 427, 610, 854, 1220, 1708, 2135, 3323, 4270, 6646, 8540, 13292, 16615, 23261, 33230, 46522, 66460, 93044, 116305, 202703, 232610, 405406, 465220, 810812, 1013515, 1418921, 2027030, 2837842, 4054060, 5675684, 7094605, 14189210, 28378420]

約数ペア:

[(1, 28378420), (2, 14189210), (4, 7094605), (5, 5675684), (7, 4054060), (10, 2837842), (14, 2027030), (20, 1418921), (28, 1013515), (35, 810812), (61, 465220), (70, 405406), (122, 232610), (140, 202703), (244, 116305), (305, 93044), (427, 66460), (610, 46522), (854, 33230), (1220, 23261), (1708, 16615), (2135, 13292), (3323, 8540), (4270, 6646)]