18295990

素因数分解:

$2^1\times 5^1\times {\mathrm{71}}^1\times {\mathrm{73}}^1\times {\mathrm{353}}^1$

素因数の和:504

約数の個数: 32

約数和(自身を含む): 33950016

約数和(自身を除く): 15654026

約数列:

[1, 2, 5, 10, 71, 73, 142, 146, 353, 355, 365, 706, 710, 730, 1765, 3530, 5183, 10366, 25063, 25769, 25915, 50126, 51538, 51830, 125315, 128845, 250630, 257690, 1829599, 3659198, 9147995, 18295990]

約数ペア:

[(1, 18295990), (2, 9147995), (5, 3659198), (10, 1829599), (71, 257690), (73, 250630), (142, 128845), (146, 125315), (353, 51830), (355, 51538), (365, 50126), (706, 25915), (710, 25769), (730, 25063), (1765, 10366), (3530, 5183)]