81667144

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{73}}^1\times {\mathrm{347}}^1$

素因数の和:470

約数の個数: 64

約数和(自身を含む): 173053440

約数和(自身を除く): 91386296

約数列:

[1, 2, 4, 8, 13, 26, 31, 52, 62, 73, 104, 124, 146, 248, 292, 347, 403, 584, 694, 806, 949, 1388, 1612, 1898, 2263, 2776, 3224, 3796, 4511, 4526, 7592, 9022, 9052, 10757, 18044, 18104, 21514, 25331, 29419, 36088, 43028, 50662, 58838, 86056, 101324, 117676, 139841, 202648, 235352, 279682, 329303, 559364, 658606, 785261, 1118728, 1317212, 1570522, 2634424, 3141044, 6282088, 10208393, 20416786, 40833572, 81667144]

約数ペア:

[(1, 81667144), (2, 40833572), (4, 20416786), (8, 10208393), (13, 6282088), (26, 3141044), (31, 2634424), (52, 1570522), (62, 1317212), (73, 1118728), (104, 785261), (124, 658606), (146, 559364), (248, 329303), (292, 279682), (347, 235352), (403, 202648), (584, 139841), (694, 117676), (806, 101324), (949, 86056), (1388, 58838), (1612, 50662), (1898, 43028), (2263, 36088), (2776, 29419), (3224, 25331), (3796, 21514), (4511, 18104), (4526, 18044), (7592, 10757), (9022, 9052)]