19668740

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{101}}^1\times {\mathrm{107}}^1$

素因数の和:237

約数の個数: 96

約数和(自身を含む): 51819264

約数和(自身を除く): 32150524

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 20, 26, 28, 35, 52, 65, 70, 91, 101, 107, 130, 140, 182, 202, 214, 260, 364, 404, 428, 455, 505, 535, 707, 749, 910, 1010, 1070, 1313, 1391, 1414, 1498, 1820, 2020, 2140, 2626, 2782, 2828, 2996, 3535, 3745, 5252, 5564, 6565, 6955, 7070, 7490, 9191, 9737, 10807, 13130, 13910, 14140, 14980, 18382, 19474, 21614, 26260, 27820, 36764, 38948, 43228, 45955, 48685, 54035, 75649, 91910, 97370, 108070, 140491, 151298, 183820, 194740, 216140, 280982, 302596, 378245, 561964, 702455, 756490, 983437, 1404910, 1512980, 1966874, 2809820, 3933748, 4917185, 9834370, 19668740]

約数ペア:

[(1, 19668740), (2, 9834370), (4, 4917185), (5, 3933748), (7, 2809820), (10, 1966874), (13, 1512980), (14, 1404910), (20, 983437), (26, 756490), (28, 702455), (35, 561964), (52, 378245), (65, 302596), (70, 280982), (91, 216140), (101, 194740), (107, 183820), (130, 151298), (140, 140491), (182, 108070), (202, 97370), (214, 91910), (260, 75649), (364, 54035), (404, 48685), (428, 45955), (455, 43228), (505, 38948), (535, 36764), (707, 27820), (749, 26260), (910, 21614), (1010, 19474), (1070, 18382), (1313, 14980), (1391, 14140), (1414, 13910), (1498, 13130), (1820, 10807), (2020, 9737), (2140, 9191), (2626, 7490), (2782, 7070), (2828, 6955), (2996, 6565), (3535, 5564), (3745, 5252)]