15868220

素因数分解:

$2^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{109}}^1\times {\mathrm{251}}^1$

素因数の和:398

約数の個数: 48

約数和(自身を含む): 34927200

約数和(自身を除く): 19058980

約数列:

[1, 2, 4, 5, 10, 20, 29, 58, 109, 116, 145, 218, 251, 290, 436, 502, 545, 580, 1004, 1090, 1255, 2180, 2510, 3161, 5020, 6322, 7279, 12644, 14558, 15805, 27359, 29116, 31610, 36395, 54718, 63220, 72790, 109436, 136795, 145580, 273590, 547180, 793411, 1586822, 3173644, 3967055, 7934110, 15868220]

約数ペア:

[(1, 15868220), (2, 7934110), (4, 3967055), (5, 3173644), (10, 1586822), (20, 793411), (29, 547180), (58, 273590), (109, 145580), (116, 136795), (145, 109436), (218, 72790), (251, 63220), (290, 54718), (436, 36395), (502, 31610), (545, 29116), (580, 27359), (1004, 15805), (1090, 14558), (1255, 12644), (2180, 7279), (2510, 6322), (3161, 5020)]