81270180

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{15569}}^1$

素因数の和:15613

約数の個数: 72

約数和(自身を含む): 255036600

約数和(自身を除く): 173766420

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 29, 30, 36, 45, 58, 60, 87, 90, 116, 145, 174, 180, 261, 290, 348, 435, 522, 580, 870, 1044, 1305, 1740, 2610, 5220, 15569, 31138, 46707, 62276, 77845, 93414, 140121, 155690, 186828, 233535, 280242, 311380, 451501, 467070, 560484, 700605, 903002, 934140, 1354503, 1401210, 1806004, 2257505, 2709006, 2802420, 4063509, 4515010, 5418012, 6772515, 8127018, 9030020, 13545030, 16254036, 20317545, 27090060, 40635090, 81270180]

約数ペア:

[(1, 81270180), (2, 40635090), (3, 27090060), (4, 20317545), (5, 16254036), (6, 13545030), (9, 9030020), (10, 8127018), (12, 6772515), (15, 5418012), (18, 4515010), (20, 4063509), (29, 2802420), (30, 2709006), (36, 2257505), (45, 1806004), (58, 1401210), (60, 1354503), (87, 934140), (90, 903002), (116, 700605), (145, 560484), (174, 467070), (180, 451501), (261, 311380), (290, 280242), (348, 233535), (435, 186828), (522, 155690), (580, 140121), (870, 93414), (1044, 77845), (1305, 62276), (1740, 46707), (2610, 31138), (5220, 15569)]