669780

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{61}}^2$

素因数の和:137

約数の個数: 54

約数和(自身を含む): 2065518

約数和(自身を除く): 1395738

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 61, 90, 122, 180, 183, 244, 305, 366, 549, 610, 732, 915, 1098, 1220, 1830, 2196, 2745, 3660, 3721, 5490, 7442, 10980, 11163, 14884, 18605, 22326, 33489, 37210, 44652, 55815, 66978, 74420, 111630, 133956, 167445, 223260, 334890, 669780]

約数ペア:

[(1, 669780), (2, 334890), (3, 223260), (4, 167445), (5, 133956), (6, 111630), (9, 74420), (10, 66978), (12, 55815), (15, 44652), (18, 37210), (20, 33489), (30, 22326), (36, 18605), (45, 14884), (60, 11163), (61, 10980), (90, 7442), (122, 5490), (180, 3721), (183, 3660), (244, 2745), (305, 2196), (366, 1830), (549, 1220), (610, 1098), (732, 915)]