81654390

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{331}}^1\times {\mathrm{2741}}^1$

素因数の和:3085

約数の個数: 48

約数和(自身を含む): 213020496

約数和(自身を除く): 131366106

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 45, 90, 331, 662, 993, 1655, 1986, 2741, 2979, 3310, 4965, 5482, 5958, 8223, 9930, 13705, 14895, 16446, 24669, 27410, 29790, 41115, 49338, 82230, 123345, 246690, 907271, 1814542, 2721813, 4536355, 5443626, 8165439, 9072710, 13609065, 16330878, 27218130, 40827195, 81654390]

約数ペア:

[(1, 81654390), (2, 40827195), (3, 27218130), (5, 16330878), (6, 13609065), (9, 9072710), (10, 8165439), (15, 5443626), (18, 4536355), (30, 2721813), (45, 1814542), (90, 907271), (331, 246690), (662, 123345), (993, 82230), (1655, 49338), (1986, 41115), (2741, 29790), (2979, 27410), (3310, 24669), (4965, 16446), (5482, 14895), (5958, 13705), (8223, 9930)]