19963070

素因数分解:

$2^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{71}}^1\times {\mathrm{907}}^1$

素因数の和:1016

約数の個数: 32

約数和(自身を含む): 37656576

約数和(自身を除く): 17693506

約数列:

[1, 2, 5, 10, 31, 62, 71, 142, 155, 310, 355, 710, 907, 1814, 2201, 4402, 4535, 9070, 11005, 22010, 28117, 56234, 64397, 128794, 140585, 281170, 321985, 643970, 1996307, 3992614, 9981535, 19963070]

約数ペア:

[(1, 19963070), (2, 9981535), (5, 3992614), (10, 1996307), (31, 643970), (62, 321985), (71, 281170), (142, 140585), (155, 128794), (310, 64397), (355, 56234), (710, 28117), (907, 22010), (1814, 11005), (2201, 9070), (4402, 4535)]