19889320

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{2659}}^1$

素因数の和:2698

約数の個数: 64

約数和(自身を含む): 51710400

約数和(自身を除く): 31821080

約数列:

[1, 2, 4, 5, 8, 10, 11, 17, 20, 22, 34, 40, 44, 55, 68, 85, 88, 110, 136, 170, 187, 220, 340, 374, 440, 680, 748, 935, 1496, 1870, 2659, 3740, 5318, 7480, 10636, 13295, 21272, 26590, 29249, 45203, 53180, 58498, 90406, 106360, 116996, 146245, 180812, 226015, 233992, 292490, 361624, 452030, 497233, 584980, 904060, 994466, 1169960, 1808120, 1988932, 2486165, 3977864, 4972330, 9944660, 19889320]

約数ペア:

[(1, 19889320), (2, 9944660), (4, 4972330), (5, 3977864), (8, 2486165), (10, 1988932), (11, 1808120), (17, 1169960), (20, 994466), (22, 904060), (34, 584980), (40, 497233), (44, 452030), (55, 361624), (68, 292490), (85, 233992), (88, 226015), (110, 180812), (136, 146245), (170, 116996), (187, 106360), (220, 90406), (340, 58498), (374, 53180), (440, 45203), (680, 29249), (748, 26590), (935, 21272), (1496, 13295), (1870, 10636), (2659, 7480), (3740, 5318)]