20655050

素因数分解:

$2^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{739}}^1$

素因数の和:807

約数の個数: 48

約数和(自身を含む): 42393120

約数和(自身を除く): 21738070

約数列:

[1, 2, 5, 10, 13, 25, 26, 43, 50, 65, 86, 130, 215, 325, 430, 559, 650, 739, 1075, 1118, 1478, 2150, 2795, 3695, 5590, 7390, 9607, 13975, 18475, 19214, 27950, 31777, 36950, 48035, 63554, 96070, 158885, 240175, 317770, 413101, 480350, 794425, 826202, 1588850, 2065505, 4131010, 10327525, 20655050]

約数ペア:

[(1, 20655050), (2, 10327525), (5, 4131010), (10, 2065505), (13, 1588850), (25, 826202), (26, 794425), (43, 480350), (50, 413101), (65, 317770), (86, 240175), (130, 158885), (215, 96070), (325, 63554), (430, 48035), (559, 36950), (650, 31777), (739, 27950), (1075, 19214), (1118, 18475), (1478, 13975), (2150, 9607), (2795, 7390), (3695, 5590)]