20503444

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{59}}^1\times {\mathrm{163}}^1$

素因数の和:280

約数の個数: 48

約数和(自身を含む): 40501440

約数和(自身を除く): 19997996

約数列:

[1, 2, 4, 13, 26, 41, 52, 59, 82, 118, 163, 164, 236, 326, 533, 652, 767, 1066, 1534, 2119, 2132, 2419, 3068, 4238, 4838, 6683, 8476, 9617, 9676, 13366, 19234, 26732, 31447, 38468, 62894, 86879, 125021, 125788, 173758, 250042, 347516, 394297, 500084, 788594, 1577188, 5125861, 10251722, 20503444]

約数ペア:

[(1, 20503444), (2, 10251722), (4, 5125861), (13, 1577188), (26, 788594), (41, 500084), (52, 394297), (59, 347516), (82, 250042), (118, 173758), (163, 125788), (164, 125021), (236, 86879), (326, 62894), (533, 38468), (652, 31447), (767, 26732), (1066, 19234), (1534, 13366), (2119, 9676), (2132, 9617), (2419, 8476), (3068, 6683), (4238, 4838)]