140180140

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{311}}^1\times {\mathrm{727}}^1$

素因数の和:1078

約数の個数: 48

約数和(自身を含む): 305270784

約数和(自身を除く): 165090644

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 310, 311, 620, 622, 727, 1244, 1454, 1555, 2908, 3110, 3635, 6220, 7270, 9641, 14540, 19282, 22537, 38564, 45074, 48205, 90148, 96410, 112685, 192820, 225370, 226097, 450740, 452194, 904388, 1130485, 2260970, 4521940, 7009007, 14018014, 28036028, 35045035, 70090070, 140180140]

約数ペア:

[(1, 140180140), (2, 70090070), (4, 35045035), (5, 28036028), (10, 14018014), (20, 7009007), (31, 4521940), (62, 2260970), (124, 1130485), (155, 904388), (310, 452194), (311, 450740), (620, 226097), (622, 225370), (727, 192820), (1244, 112685), (1454, 96410), (1555, 90148), (2908, 48205), (3110, 45074), (3635, 38564), (6220, 22537), (7270, 19282), (9641, 14540)]