491003920

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{577}}^1\times {\mathrm{967}}^1$

素因数の和:1568

約数の個数: 80

約数和(自身を含む): 1248812928

約数和(自身を除く): 757809008

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 80, 88, 110, 176, 220, 440, 577, 880, 967, 1154, 1934, 2308, 2885, 3868, 4616, 4835, 5770, 6347, 7736, 9232, 9670, 10637, 11540, 12694, 15472, 19340, 21274, 23080, 25388, 31735, 38680, 42548, 46160, 50776, 53185, 63470, 77360, 85096, 101552, 106370, 126940, 170192, 212740, 253880, 425480, 507760, 557959, 850960, 1115918, 2231836, 2789795, 4463672, 5579590, 6137549, 8927344, 11159180, 12275098, 22318360, 24550196, 30687745, 44636720, 49100392, 61375490, 98200784, 122750980, 245501960, 491003920]

約数ペア:

[(1, 491003920), (2, 245501960), (4, 122750980), (5, 98200784), (8, 61375490), (10, 49100392), (11, 44636720), (16, 30687745), (20, 24550196), (22, 22318360), (40, 12275098), (44, 11159180), (55, 8927344), (80, 6137549), (88, 5579590), (110, 4463672), (176, 2789795), (220, 2231836), (440, 1115918), (577, 850960), (880, 557959), (967, 507760), (1154, 425480), (1934, 253880), (2308, 212740), (2885, 170192), (3868, 126940), (4616, 106370), (4835, 101552), (5770, 85096), (6347, 77360), (7736, 63470), (9232, 53185), (9670, 50776), (10637, 46160), (11540, 42548), (12694, 38680), (15472, 31735), (19340, 25388), (21274, 23080)]