19984150

素因数分解:

$2^1\times 5^2\times {\mathrm{31}}^1\times {\mathrm{12893}}^1$

素因数の和:12936

約数の個数: 24

約数和(自身を含む): 38372544

約数和(自身を除く): 18388394

約数列:

[1, 2, 5, 10, 25, 31, 50, 62, 155, 310, 775, 1550, 12893, 25786, 64465, 128930, 322325, 399683, 644650, 799366, 1998415, 3996830, 9992075, 19984150]

約数ペア:

[(1, 19984150), (2, 9992075), (5, 3996830), (10, 1998415), (25, 799366), (31, 644650), (50, 399683), (62, 322325), (155, 128930), (310, 64465), (775, 25786), (1550, 12893)]