6887980

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{131}}^1\times {\mathrm{239}}^1$

素因数の和:390

約数の個数: 48

約数和(自身を含む): 15966720

約数和(自身を除く): 9078740

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 131, 220, 239, 262, 478, 524, 655, 956, 1195, 1310, 1441, 2390, 2620, 2629, 2882, 4780, 5258, 5764, 7205, 10516, 13145, 14410, 26290, 28820, 31309, 52580, 62618, 125236, 156545, 313090, 344399, 626180, 688798, 1377596, 1721995, 3443990, 6887980]

約数ペア:

[(1, 6887980), (2, 3443990), (4, 1721995), (5, 1377596), (10, 688798), (11, 626180), (20, 344399), (22, 313090), (44, 156545), (55, 125236), (110, 62618), (131, 52580), (220, 31309), (239, 28820), (262, 26290), (478, 14410), (524, 13145), (655, 10516), (956, 7205), (1195, 5764), (1310, 5258), (1441, 4780), (2390, 2882), (2620, 2629)]