66395780

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{89}}^1\times {\mathrm{3391}}^1$

素因数の和:3500

約数の個数: 48

約数和(自身を含む): 153861120

約数和(自身を除く): 87465340

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 89, 110, 178, 220, 356, 445, 890, 979, 1780, 1958, 3391, 3916, 4895, 6782, 9790, 13564, 16955, 19580, 33910, 37301, 67820, 74602, 149204, 186505, 301799, 373010, 603598, 746020, 1207196, 1508995, 3017990, 3319789, 6035980, 6639578, 13279156, 16598945, 33197890, 66395780]

約数ペア:

[(1, 66395780), (2, 33197890), (4, 16598945), (5, 13279156), (10, 6639578), (11, 6035980), (20, 3319789), (22, 3017990), (44, 1508995), (55, 1207196), (89, 746020), (110, 603598), (178, 373010), (220, 301799), (356, 186505), (445, 149204), (890, 74602), (979, 67820), (1780, 37301), (1958, 33910), (3391, 19580), (3916, 16955), (4895, 13564), (6782, 9790)]