279970290820

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{157}}^1\times {\mathrm{352421}}^1$

素因数の和:352621

約数の個数: 96

約数和(自身を含む): 673537648896

約数和(自身を除く): 393567358076

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 23, 44, 46, 55, 92, 110, 115, 157, 220, 230, 253, 314, 460, 506, 628, 785, 1012, 1265, 1570, 1727, 2530, 3140, 3454, 3611, 5060, 6908, 7222, 8635, 14444, 17270, 18055, 34540, 36110, 39721, 72220, 79442, 158884, 198605, 352421, 397210, 704842, 794420, 1409684, 1762105, 3524210, 3876631, 7048420, 7753262, 8105683, 15506524, 16211366, 19383155, 32422732, 38766310, 40528415, 55330097, 77532620, 81056830, 89162513, 110660194, 162113660, 178325026, 221320388, 276650485, 356650052, 445812565, 553300970, 608631067, 891625130, 1106601940, 1217262134, 1272592231, 1783250260, 2434524268, 2545184462, 3043155335, 5090368924, 6086310670, 6362961155, 12172621340, 12725922310, 13998514541, 25451844620, 27997029082, 55994058164, 69992572705, 139985145410, 279970290820]

約数ペア:

[(1, 279970290820), (2, 139985145410), (4, 69992572705), (5, 55994058164), (10, 27997029082), (11, 25451844620), (20, 13998514541), (22, 12725922310), (23, 12172621340), (44, 6362961155), (46, 6086310670), (55, 5090368924), (92, 3043155335), (110, 2545184462), (115, 2434524268), (157, 1783250260), (220, 1272592231), (230, 1217262134), (253, 1106601940), (314, 891625130), (460, 608631067), (506, 553300970), (628, 445812565), (785, 356650052), (1012, 276650485), (1265, 221320388), (1570, 178325026), (1727, 162113660), (2530, 110660194), (3140, 89162513), (3454, 81056830), (3611, 77532620), (5060, 55330097), (6908, 40528415), (7222, 38766310), (8635, 32422732), (14444, 19383155), (17270, 16211366), (18055, 15506524), (34540, 8105683), (36110, 7753262), (39721, 7048420), (72220, 3876631), (79442, 3524210), (158884, 1762105), (198605, 1409684), (352421, 794420), (397210, 704842)]