68870780

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^2\times {\mathrm{149}}^1\times {\mathrm{191}}^1$

素因数の和:371

約数の個数: 72

約数和(自身を含む): 160876800

約数和(自身を除く): 92006020

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 121, 149, 191, 220, 242, 298, 382, 484, 596, 605, 745, 764, 955, 1210, 1490, 1639, 1910, 2101, 2420, 2980, 3278, 3820, 4202, 6556, 8195, 8404, 10505, 16390, 18029, 21010, 23111, 28459, 32780, 36058, 42020, 46222, 56918, 72116, 90145, 92444, 113836, 115555, 142295, 180290, 231110, 284590, 313049, 360580, 462220, 569180, 626098, 1252196, 1565245, 3130490, 3443539, 6260980, 6887078, 13774156, 17217695, 34435390, 68870780]

約数ペア:

[(1, 68870780), (2, 34435390), (4, 17217695), (5, 13774156), (10, 6887078), (11, 6260980), (20, 3443539), (22, 3130490), (44, 1565245), (55, 1252196), (110, 626098), (121, 569180), (149, 462220), (191, 360580), (220, 313049), (242, 284590), (298, 231110), (382, 180290), (484, 142295), (596, 115555), (605, 113836), (745, 92444), (764, 90145), (955, 72116), (1210, 56918), (1490, 46222), (1639, 42020), (1910, 36058), (2101, 32780), (2420, 28459), (2980, 23111), (3278, 21010), (3820, 18029), (4202, 16390), (6556, 10505), (8195, 8404)]