661982640

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{250751}}^1$

素因数の和:250778

約数の個数: 80

約数和(自身を含む): 2238713856

約数和(自身を除く): 1576731216

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 11, 12, 15, 16, 20, 22, 24, 30, 33, 40, 44, 48, 55, 60, 66, 80, 88, 110, 120, 132, 165, 176, 220, 240, 264, 330, 440, 528, 660, 880, 1320, 2640, 250751, 501502, 752253, 1003004, 1253755, 1504506, 2006008, 2507510, 2758261, 3009012, 3761265, 4012016, 5015020, 5516522, 6018024, 7522530, 8274783, 10030040, 11033044, 12036048, 13791305, 15045060, 16549566, 20060080, 22066088, 27582610, 30090120, 33099132, 41373915, 44132176, 55165220, 60180240, 66198264, 82747830, 110330440, 132396528, 165495660, 220660880, 330991320, 661982640]

約数ペア:

[(1, 661982640), (2, 330991320), (3, 220660880), (4, 165495660), (5, 132396528), (6, 110330440), (8, 82747830), (10, 66198264), (11, 60180240), (12, 55165220), (15, 44132176), (16, 41373915), (20, 33099132), (22, 30090120), (24, 27582610), (30, 22066088), (33, 20060080), (40, 16549566), (44, 15045060), (48, 13791305), (55, 12036048), (60, 11033044), (66, 10030040), (80, 8274783), (88, 7522530), (110, 6018024), (120, 5516522), (132, 5015020), (165, 4012016), (176, 3761265), (220, 3009012), (240, 2758261), (264, 2507510), (330, 2006008), (440, 1504506), (528, 1253755), (660, 1003004), (880, 752253), (1320, 501502), (2640, 250751)]