19811040

素因数分解:

$2^5\times 3^1\times 5^1\times {\mathrm{149}}^1\times {\mathrm{277}}^1$

素因数の和:444

約数の個数: 96

約数和(自身を含む): 63050400

約数和(自身を除く): 43239360

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 40, 48, 60, 80, 96, 120, 149, 160, 240, 277, 298, 447, 480, 554, 596, 745, 831, 894, 1108, 1192, 1385, 1490, 1662, 1788, 2216, 2235, 2384, 2770, 2980, 3324, 3576, 4155, 4432, 4470, 4768, 5540, 5960, 6648, 7152, 8310, 8864, 8940, 11080, 11920, 13296, 14304, 16620, 17880, 22160, 23840, 26592, 33240, 35760, 41273, 44320, 66480, 71520, 82546, 123819, 132960, 165092, 206365, 247638, 330184, 412730, 495276, 619095, 660368, 825460, 990552, 1238190, 1320736, 1650920, 1981104, 2476380, 3301840, 3962208, 4952760, 6603680, 9905520, 19811040]

約数ペア:

[(1, 19811040), (2, 9905520), (3, 6603680), (4, 4952760), (5, 3962208), (6, 3301840), (8, 2476380), (10, 1981104), (12, 1650920), (15, 1320736), (16, 1238190), (20, 990552), (24, 825460), (30, 660368), (32, 619095), (40, 495276), (48, 412730), (60, 330184), (80, 247638), (96, 206365), (120, 165092), (149, 132960), (160, 123819), (240, 82546), (277, 71520), (298, 66480), (447, 44320), (480, 41273), (554, 35760), (596, 33240), (745, 26592), (831, 23840), (894, 22160), (1108, 17880), (1192, 16620), (1385, 14304), (1490, 13296), (1662, 11920), (1788, 11080), (2216, 8940), (2235, 8864), (2384, 8310), (2770, 7152), (2980, 6648), (3324, 5960), (3576, 5540), (4155, 4768), (4432, 4470)]