819546680

素因数分解:

$2^3\times 5^1\times {\mathrm{67}}^1\times {\mathrm{313}}^1\times {\mathrm{977}}^1$

素因数の和:1368

約数の個数: 64

約数和(自身を含む): 1879403040

約数和(自身を除く): 1059856360

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 67, 134, 268, 313, 335, 536, 626, 670, 977, 1252, 1340, 1565, 1954, 2504, 2680, 3130, 3908, 4885, 6260, 7816, 9770, 12520, 19540, 20971, 39080, 41942, 65459, 83884, 104855, 130918, 167768, 209710, 261836, 305801, 327295, 419420, 523672, 611602, 654590, 838840, 1223204, 1309180, 1529005, 2446408, 2618360, 3058010, 6116020, 12232040, 20488667, 40977334, 81954668, 102443335, 163909336, 204886670, 409773340, 819546680]

約数ペア:

[(1, 819546680), (2, 409773340), (4, 204886670), (5, 163909336), (8, 102443335), (10, 81954668), (20, 40977334), (40, 20488667), (67, 12232040), (134, 6116020), (268, 3058010), (313, 2618360), (335, 2446408), (536, 1529005), (626, 1309180), (670, 1223204), (977, 838840), (1252, 654590), (1340, 611602), (1565, 523672), (1954, 419420), (2504, 327295), (2680, 305801), (3130, 261836), (3908, 209710), (4885, 167768), (6260, 130918), (7816, 104855), (9770, 83884), (12520, 65459), (19540, 41942), (20971, 39080)]