198511820

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{73}}^1\times {\mathrm{10459}}^1$

素因数の和:10554

約数の個数: 48

約数和(自身を含む): 455135520

約数和(自身を除く): 256623700

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 73, 130, 146, 260, 292, 365, 730, 949, 1460, 1898, 3796, 4745, 9490, 10459, 18980, 20918, 41836, 52295, 104590, 135967, 209180, 271934, 543868, 679835, 763507, 1359670, 1527014, 2719340, 3054028, 3817535, 7635070, 9925591, 15270140, 19851182, 39702364, 49627955, 99255910, 198511820]

約数ペア:

[(1, 198511820), (2, 99255910), (4, 49627955), (5, 39702364), (10, 19851182), (13, 15270140), (20, 9925591), (26, 7635070), (52, 3817535), (65, 3054028), (73, 2719340), (130, 1527014), (146, 1359670), (260, 763507), (292, 679835), (365, 543868), (730, 271934), (949, 209180), (1460, 135967), (1898, 104590), (3796, 52295), (4745, 41836), (9490, 20918), (10459, 18980)]