201821050

素因数分解:

$2^1\times 5^2\times {\mathrm{71}}^1\times {\mathrm{139}}^1\times {\mathrm{409}}^1$

素因数の和:631

約数の個数: 48

約数和(自身を含む): 384350400

約数和(自身を除く): 182529350

約数列:

[1, 2, 5, 10, 25, 50, 71, 139, 142, 278, 355, 409, 695, 710, 818, 1390, 1775, 2045, 3475, 3550, 4090, 6950, 9869, 10225, 19738, 20450, 29039, 49345, 56851, 58078, 98690, 113702, 145195, 246725, 284255, 290390, 493450, 568510, 725975, 1421275, 1451950, 2842550, 4036421, 8072842, 20182105, 40364210, 100910525, 201821050]

約数ペア:

[(1, 201821050), (2, 100910525), (5, 40364210), (10, 20182105), (25, 8072842), (50, 4036421), (71, 2842550), (139, 1451950), (142, 1421275), (278, 725975), (355, 568510), (409, 493450), (695, 290390), (710, 284255), (818, 246725), (1390, 145195), (1775, 113702), (2045, 98690), (3475, 58078), (3550, 56851), (4090, 49345), (6950, 29039), (9869, 20450), (10225, 19738)]