20680788

素因数分解:

$2^2\times 3^1\times {\mathrm{97}}^1\times {\mathrm{109}}^1\times {\mathrm{163}}^1$

素因数の和:376

約数の個数: 48

約数和(自身を含む): 49501760

約数和(自身を除く): 28820972

約数列:

[1, 2, 3, 4, 6, 12, 97, 109, 163, 194, 218, 291, 326, 327, 388, 436, 489, 582, 652, 654, 978, 1164, 1308, 1956, 10573, 15811, 17767, 21146, 31622, 31719, 35534, 42292, 47433, 53301, 63244, 63438, 71068, 94866, 106602, 126876, 189732, 213204, 1723399, 3446798, 5170197, 6893596, 10340394, 20680788]

約数ペア:

[(1, 20680788), (2, 10340394), (3, 6893596), (4, 5170197), (6, 3446798), (12, 1723399), (97, 213204), (109, 189732), (163, 126876), (194, 106602), (218, 94866), (291, 71068), (326, 63438), (327, 63244), (388, 53301), (436, 47433), (489, 42292), (582, 35534), (652, 31719), (654, 31622), (978, 21146), (1164, 17767), (1308, 15811), (1956, 10573)]