65039420

素因数分解:

$2^2\times 5^1\times {\mathrm{61}}^1\times {\mathrm{89}}^1\times {\mathrm{599}}^1$

素因数の和:758

約数の個数: 48

約数和(自身を含む): 140616000

約数和(自身を除く): 75576580

約数列:

[1, 2, 4, 5, 10, 20, 61, 89, 122, 178, 244, 305, 356, 445, 599, 610, 890, 1198, 1220, 1780, 2396, 2995, 5429, 5990, 10858, 11980, 21716, 27145, 36539, 53311, 54290, 73078, 106622, 108580, 146156, 182695, 213244, 266555, 365390, 533110, 730780, 1066220, 3251971, 6503942, 13007884, 16259855, 32519710, 65039420]

約数ペア:

[(1, 65039420), (2, 32519710), (4, 16259855), (5, 13007884), (10, 6503942), (20, 3251971), (61, 1066220), (89, 730780), (122, 533110), (178, 365390), (244, 266555), (305, 213244), (356, 182695), (445, 146156), (599, 108580), (610, 106622), (890, 73078), (1198, 54290), (1220, 53311), (1780, 36539), (2396, 27145), (2995, 21716), (5429, 11980), (5990, 10858)]