67815280

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{197}}^1\times {\mathrm{331}}^1$

素因数の和:554

約数の個数: 80

約数和(自身を含む): 171176544

約数和(自身を除く): 103361264

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 197, 208, 260, 331, 394, 520, 662, 788, 985, 1040, 1324, 1576, 1655, 1970, 2561, 2648, 3152, 3310, 3940, 4303, 5122, 5296, 6620, 7880, 8606, 10244, 12805, 13240, 15760, 17212, 20488, 21515, 25610, 26480, 34424, 40976, 43030, 51220, 65207, 68848, 86060, 102440, 130414, 172120, 204880, 260828, 326035, 344240, 521656, 652070, 847691, 1043312, 1304140, 1695382, 2608280, 3390764, 4238455, 5216560, 6781528, 8476910, 13563056, 16953820, 33907640, 67815280]

約数ペア:

[(1, 67815280), (2, 33907640), (4, 16953820), (5, 13563056), (8, 8476910), (10, 6781528), (13, 5216560), (16, 4238455), (20, 3390764), (26, 2608280), (40, 1695382), (52, 1304140), (65, 1043312), (80, 847691), (104, 652070), (130, 521656), (197, 344240), (208, 326035), (260, 260828), (331, 204880), (394, 172120), (520, 130414), (662, 102440), (788, 86060), (985, 68848), (1040, 65207), (1324, 51220), (1576, 43030), (1655, 40976), (1970, 34424), (2561, 26480), (2648, 25610), (3152, 21515), (3310, 20488), (3940, 17212), (4303, 15760), (5122, 13240), (5296, 12805), (6620, 10244), (7880, 8606)]