19087940

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{1811}}^1$

素因数の和:1868

約数の個数: 48

約数和(自身を含む): 43835904

約数和(自身を除く): 24747964

約数列:

[1, 2, 4, 5, 10, 17, 20, 31, 34, 62, 68, 85, 124, 155, 170, 310, 340, 527, 620, 1054, 1811, 2108, 2635, 3622, 5270, 7244, 9055, 10540, 18110, 30787, 36220, 56141, 61574, 112282, 123148, 153935, 224564, 280705, 307870, 561410, 615740, 954397, 1122820, 1908794, 3817588, 4771985, 9543970, 19087940]

約数ペア:

[(1, 19087940), (2, 9543970), (4, 4771985), (5, 3817588), (10, 1908794), (17, 1122820), (20, 954397), (31, 615740), (34, 561410), (62, 307870), (68, 280705), (85, 224564), (124, 153935), (155, 123148), (170, 112282), (310, 61574), (340, 56141), (527, 36220), (620, 30787), (1054, 18110), (1811, 10540), (2108, 9055), (2635, 7244), (3622, 5270)]