18690960

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{47}}^1\times {\mathrm{1657}}^1$

素因数の和:1720

約数の個数: 80

約数和(自身を含む): 59210496

約数和(自身を除く): 40519536

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 47, 48, 60, 80, 94, 120, 141, 188, 235, 240, 282, 376, 470, 564, 705, 752, 940, 1128, 1410, 1657, 1880, 2256, 2820, 3314, 3760, 4971, 5640, 6628, 8285, 9942, 11280, 13256, 16570, 19884, 24855, 26512, 33140, 39768, 49710, 66280, 77879, 79536, 99420, 132560, 155758, 198840, 233637, 311516, 389395, 397680, 467274, 623032, 778790, 934548, 1168185, 1246064, 1557580, 1869096, 2336370, 3115160, 3738192, 4672740, 6230320, 9345480, 18690960]

約数ペア:

[(1, 18690960), (2, 9345480), (3, 6230320), (4, 4672740), (5, 3738192), (6, 3115160), (8, 2336370), (10, 1869096), (12, 1557580), (15, 1246064), (16, 1168185), (20, 934548), (24, 778790), (30, 623032), (40, 467274), (47, 397680), (48, 389395), (60, 311516), (80, 233637), (94, 198840), (120, 155758), (141, 132560), (188, 99420), (235, 79536), (240, 77879), (282, 66280), (376, 49710), (470, 39768), (564, 33140), (705, 26512), (752, 24855), (940, 19884), (1128, 16570), (1410, 13256), (1657, 11280), (1880, 9942), (2256, 8285), (2820, 6628), (3314, 5640), (3760, 4971)]