19837740

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{877}}^1$

素因数の和:931

約数の個数: 96

約数和(自身を含む): 61951680

約数和(自身を除く): 42113940

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 26, 29, 30, 39, 52, 58, 60, 65, 78, 87, 116, 130, 145, 156, 174, 195, 260, 290, 348, 377, 390, 435, 580, 754, 780, 870, 877, 1131, 1508, 1740, 1754, 1885, 2262, 2631, 3508, 3770, 4385, 4524, 5262, 5655, 7540, 8770, 10524, 11310, 11401, 13155, 17540, 22620, 22802, 25433, 26310, 34203, 45604, 50866, 52620, 57005, 68406, 76299, 101732, 114010, 127165, 136812, 152598, 171015, 228020, 254330, 305196, 330629, 342030, 381495, 508660, 661258, 684060, 762990, 991887, 1322516, 1525980, 1653145, 1983774, 3306290, 3967548, 4959435, 6612580, 9918870, 19837740]

約数ペア:

[(1, 19837740), (2, 9918870), (3, 6612580), (4, 4959435), (5, 3967548), (6, 3306290), (10, 1983774), (12, 1653145), (13, 1525980), (15, 1322516), (20, 991887), (26, 762990), (29, 684060), (30, 661258), (39, 508660), (52, 381495), (58, 342030), (60, 330629), (65, 305196), (78, 254330), (87, 228020), (116, 171015), (130, 152598), (145, 136812), (156, 127165), (174, 114010), (195, 101732), (260, 76299), (290, 68406), (348, 57005), (377, 52620), (390, 50866), (435, 45604), (580, 34203), (754, 26310), (780, 25433), (870, 22802), (877, 22620), (1131, 17540), (1508, 13155), (1740, 11401), (1754, 11310), (1885, 10524), (2262, 8770), (2631, 7540), (3508, 5655), (3770, 5262), (4385, 4524)]