15815440

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{401}}^1$

素因数の和:460

約数の個数: 80

約数和(自身を含む): 40376880

約数和(自身を除く): 24561440

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 29, 34, 40, 58, 68, 80, 85, 116, 136, 145, 170, 232, 272, 290, 340, 401, 464, 493, 580, 680, 802, 986, 1160, 1360, 1604, 1972, 2005, 2320, 2465, 3208, 3944, 4010, 4930, 6416, 6817, 7888, 8020, 9860, 11629, 13634, 16040, 19720, 23258, 27268, 32080, 34085, 39440, 46516, 54536, 58145, 68170, 93032, 109072, 116290, 136340, 186064, 197693, 232580, 272680, 395386, 465160, 545360, 790772, 930320, 988465, 1581544, 1976930, 3163088, 3953860, 7907720, 15815440]

約数ペア:

[(1, 15815440), (2, 7907720), (4, 3953860), (5, 3163088), (8, 1976930), (10, 1581544), (16, 988465), (17, 930320), (20, 790772), (29, 545360), (34, 465160), (40, 395386), (58, 272680), (68, 232580), (80, 197693), (85, 186064), (116, 136340), (136, 116290), (145, 109072), (170, 93032), (232, 68170), (272, 58145), (290, 54536), (340, 46516), (401, 39440), (464, 34085), (493, 32080), (580, 27268), (680, 23258), (802, 19720), (986, 16040), (1160, 13634), (1360, 11629), (1604, 9860), (1972, 8020), (2005, 7888), (2320, 6817), (2465, 6416), (3208, 4930), (3944, 4010)]