80666960

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{2957}}^1$

素因数の和:3012

約数の個数: 80

約数和(自身を含む): 211272192

約数和(自身を除く): 130605232

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 31, 40, 44, 55, 62, 80, 88, 110, 124, 155, 176, 220, 248, 310, 341, 440, 496, 620, 682, 880, 1240, 1364, 1705, 2480, 2728, 2957, 3410, 5456, 5914, 6820, 11828, 13640, 14785, 23656, 27280, 29570, 32527, 47312, 59140, 65054, 91667, 118280, 130108, 162635, 183334, 236560, 260216, 325270, 366668, 458335, 520432, 650540, 733336, 916670, 1008337, 1301080, 1466672, 1833340, 2016674, 2602160, 3666680, 4033348, 5041685, 7333360, 8066696, 10083370, 16133392, 20166740, 40333480, 80666960]

約数ペア:

[(1, 80666960), (2, 40333480), (4, 20166740), (5, 16133392), (8, 10083370), (10, 8066696), (11, 7333360), (16, 5041685), (20, 4033348), (22, 3666680), (31, 2602160), (40, 2016674), (44, 1833340), (55, 1466672), (62, 1301080), (80, 1008337), (88, 916670), (110, 733336), (124, 650540), (155, 520432), (176, 458335), (220, 366668), (248, 325270), (310, 260216), (341, 236560), (440, 183334), (496, 162635), (620, 130108), (682, 118280), (880, 91667), (1240, 65054), (1364, 59140), (1705, 47312), (2480, 32527), (2728, 29570), (2957, 27280), (3410, 23656), (5456, 14785), (5914, 13640), (6820, 11828)]