18145060

素因数分解:

$2^2\times 5^1\times {\mathrm{61}}^1\times {\mathrm{107}}^1\times {\mathrm{139}}^1$

素因数の和:316

約数の個数: 48

約数和(自身を含む): 39372480

約数和(自身を除く): 21227420

約数列:

[1, 2, 4, 5, 10, 20, 61, 107, 122, 139, 214, 244, 278, 305, 428, 535, 556, 610, 695, 1070, 1220, 1390, 2140, 2780, 6527, 8479, 13054, 14873, 16958, 26108, 29746, 32635, 33916, 42395, 59492, 65270, 74365, 84790, 130540, 148730, 169580, 297460, 907253, 1814506, 3629012, 4536265, 9072530, 18145060]

約数ペア:

[(1, 18145060), (2, 9072530), (4, 4536265), (5, 3629012), (10, 1814506), (20, 907253), (61, 297460), (107, 169580), (122, 148730), (139, 130540), (214, 84790), (244, 74365), (278, 65270), (305, 59492), (428, 42395), (535, 33916), (556, 32635), (610, 29746), (695, 26108), (1070, 16958), (1220, 14873), (1390, 13054), (2140, 8479), (2780, 6527)]