19181520

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{26641}}^1$

素因数の和:26660

約数の個数: 60

約数和(自身を含む): 64420356

約数和(自身を除く): 45238836

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 36, 40, 45, 48, 60, 72, 80, 90, 120, 144, 180, 240, 360, 720, 26641, 53282, 79923, 106564, 133205, 159846, 213128, 239769, 266410, 319692, 399615, 426256, 479538, 532820, 639384, 799230, 959076, 1065640, 1198845, 1278768, 1598460, 1918152, 2131280, 2397690, 3196920, 3836304, 4795380, 6393840, 9590760, 19181520]

約数ペア:

[(1, 19181520), (2, 9590760), (3, 6393840), (4, 4795380), (5, 3836304), (6, 3196920), (8, 2397690), (9, 2131280), (10, 1918152), (12, 1598460), (15, 1278768), (16, 1198845), (18, 1065640), (20, 959076), (24, 799230), (30, 639384), (36, 532820), (40, 479538), (45, 426256), (48, 399615), (60, 319692), (72, 266410), (80, 239769), (90, 213128), (120, 159846), (144, 133205), (180, 106564), (240, 79923), (360, 53282), (720, 26641)]