15965720

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{53}}^1\times {\mathrm{443}}^1$

素因数の和:524

約数の個数: 64

約数和(自身を含む): 38841120

約数和(自身を除く): 22875400

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 53, 68, 85, 106, 136, 170, 212, 265, 340, 424, 443, 530, 680, 886, 901, 1060, 1772, 1802, 2120, 2215, 3544, 3604, 4430, 4505, 7208, 7531, 8860, 9010, 15062, 17720, 18020, 23479, 30124, 36040, 37655, 46958, 60248, 75310, 93916, 117395, 150620, 187832, 234790, 301240, 399143, 469580, 798286, 939160, 1596572, 1995715, 3193144, 3991430, 7982860, 15965720]

約数ペア:

[(1, 15965720), (2, 7982860), (4, 3991430), (5, 3193144), (8, 1995715), (10, 1596572), (17, 939160), (20, 798286), (34, 469580), (40, 399143), (53, 301240), (68, 234790), (85, 187832), (106, 150620), (136, 117395), (170, 93916), (212, 75310), (265, 60248), (340, 46958), (424, 37655), (443, 36040), (530, 30124), (680, 23479), (886, 18020), (901, 17720), (1060, 15062), (1772, 9010), (1802, 8860), (2120, 7531), (2215, 7208), (3544, 4505), (3604, 4430)]