18881040

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{151}}^1\times {\mathrm{521}}^1$

素因数の和:688

約数の個数: 80

約数和(自身を含む): 59031936

約数和(自身を除く): 40150896

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 151, 240, 302, 453, 521, 604, 755, 906, 1042, 1208, 1510, 1563, 1812, 2084, 2265, 2416, 2605, 3020, 3126, 3624, 4168, 4530, 5210, 6040, 6252, 7248, 7815, 8336, 9060, 10420, 12080, 12504, 15630, 18120, 20840, 25008, 31260, 36240, 41680, 62520, 78671, 125040, 157342, 236013, 314684, 393355, 472026, 629368, 786710, 944052, 1180065, 1258736, 1573420, 1888104, 2360130, 3146840, 3776208, 4720260, 6293680, 9440520, 18881040]

約数ペア:

[(1, 18881040), (2, 9440520), (3, 6293680), (4, 4720260), (5, 3776208), (6, 3146840), (8, 2360130), (10, 1888104), (12, 1573420), (15, 1258736), (16, 1180065), (20, 944052), (24, 786710), (30, 629368), (40, 472026), (48, 393355), (60, 314684), (80, 236013), (120, 157342), (151, 125040), (240, 78671), (302, 62520), (453, 41680), (521, 36240), (604, 31260), (755, 25008), (906, 20840), (1042, 18120), (1208, 15630), (1510, 12504), (1563, 12080), (1812, 10420), (2084, 9060), (2265, 8336), (2416, 7815), (2605, 7248), (3020, 6252), (3126, 6040), (3624, 5210), (4168, 4530)]