12399380

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{2857}}^1$

素因数の和:2904

約数の個数: 48

約数和(自身を含む): 30729216

約数和(自身を除く): 18329836

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 31, 35, 62, 70, 124, 140, 155, 217, 310, 434, 620, 868, 1085, 2170, 2857, 4340, 5714, 11428, 14285, 19999, 28570, 39998, 57140, 79996, 88567, 99995, 177134, 199990, 354268, 399980, 442835, 619969, 885670, 1239938, 1771340, 2479876, 3099845, 6199690, 12399380]

約数ペア:

[(1, 12399380), (2, 6199690), (4, 3099845), (5, 2479876), (7, 1771340), (10, 1239938), (14, 885670), (20, 619969), (28, 442835), (31, 399980), (35, 354268), (62, 199990), (70, 177134), (124, 99995), (140, 88567), (155, 79996), (217, 57140), (310, 39998), (434, 28570), (620, 19999), (868, 14285), (1085, 11428), (2170, 5714), (2857, 4340)]