81812538

素因数分解:

$2^1\times 3^3\times {\mathrm{29}}^1\times {\mathrm{89}}^1\times {\mathrm{587}}^1$

素因数の和:716

約数の個数: 64

約数和(自身を含む): 190512000

約数和(自身を除く): 108699462

約数列:

[1, 2, 3, 6, 9, 18, 27, 29, 54, 58, 87, 89, 174, 178, 261, 267, 522, 534, 587, 783, 801, 1174, 1566, 1602, 1761, 2403, 2581, 3522, 4806, 5162, 5283, 7743, 10566, 15486, 15849, 17023, 23229, 31698, 34046, 46458, 51069, 52243, 69687, 102138, 104486, 139374, 153207, 156729, 306414, 313458, 459621, 470187, 919242, 940374, 1410561, 1515047, 2821122, 3030094, 4545141, 9090282, 13635423, 27270846, 40906269, 81812538]

約数ペア:

[(1, 81812538), (2, 40906269), (3, 27270846), (6, 13635423), (9, 9090282), (18, 4545141), (27, 3030094), (29, 2821122), (54, 1515047), (58, 1410561), (87, 940374), (89, 919242), (174, 470187), (178, 459621), (261, 313458), (267, 306414), (522, 156729), (534, 153207), (587, 139374), (783, 104486), (801, 102138), (1174, 69687), (1566, 52243), (1602, 51069), (1761, 46458), (2403, 34046), (2581, 31698), (3522, 23229), (4806, 17023), (5162, 15849), (5283, 15486), (7743, 10566)]