78255580

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{491}}^1\times {\mathrm{613}}^1$

素因数の和:1126

約数の個数: 48

約数和(自身を含む): 177627744

約数和(自身を除く): 99372164

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 491, 613, 982, 1226, 1964, 2452, 2455, 3065, 4910, 6130, 6383, 7969, 9820, 12260, 12766, 15938, 25532, 31876, 31915, 39845, 63830, 79690, 127660, 159380, 300983, 601966, 1203932, 1504915, 3009830, 3912779, 6019660, 7825558, 15651116, 19563895, 39127790, 78255580]

約数ペア:

[(1, 78255580), (2, 39127790), (4, 19563895), (5, 15651116), (10, 7825558), (13, 6019660), (20, 3912779), (26, 3009830), (52, 1504915), (65, 1203932), (130, 601966), (260, 300983), (491, 159380), (613, 127660), (982, 79690), (1226, 63830), (1964, 39845), (2452, 31915), (2455, 31876), (3065, 25532), (4910, 15938), (6130, 12766), (6383, 12260), (7969, 9820)]