20865590

素因数分解:

$2^1\times 5^1\times {\mathrm{73}}^1\times {\mathrm{101}}^1\times {\mathrm{283}}^1$

素因数の和:464

約数の個数: 32

約数和(自身を含む): 38585376

約数和(自身を除く): 17719786

約数列:

[1, 2, 5, 10, 73, 101, 146, 202, 283, 365, 505, 566, 730, 1010, 1415, 2830, 7373, 14746, 20659, 28583, 36865, 41318, 57166, 73730, 103295, 142915, 206590, 285830, 2086559, 4173118, 10432795, 20865590]

約数ペア:

[(1, 20865590), (2, 10432795), (5, 4173118), (10, 2086559), (73, 285830), (101, 206590), (146, 142915), (202, 103295), (283, 73730), (365, 57166), (505, 41318), (566, 36865), (730, 28583), (1010, 20659), (1415, 14746), (2830, 7373)]