26781640

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{131}}^1\times {\mathrm{269}}^1$

素因数の和:430

約数の個数: 64

約数和(自身を含む): 64152000

約数和(自身を除く): 37370360

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 76, 95, 131, 152, 190, 262, 269, 380, 524, 538, 655, 760, 1048, 1076, 1310, 1345, 2152, 2489, 2620, 2690, 4978, 5111, 5240, 5380, 9956, 10222, 10760, 12445, 19912, 20444, 24890, 25555, 35239, 40888, 49780, 51110, 70478, 99560, 102220, 140956, 176195, 204440, 281912, 352390, 669541, 704780, 1339082, 1409560, 2678164, 3347705, 5356328, 6695410, 13390820, 26781640]

約数ペア:

[(1, 26781640), (2, 13390820), (4, 6695410), (5, 5356328), (8, 3347705), (10, 2678164), (19, 1409560), (20, 1339082), (38, 704780), (40, 669541), (76, 352390), (95, 281912), (131, 204440), (152, 176195), (190, 140956), (262, 102220), (269, 99560), (380, 70478), (524, 51110), (538, 49780), (655, 40888), (760, 35239), (1048, 25555), (1076, 24890), (1310, 20444), (1345, 19912), (2152, 12445), (2489, 10760), (2620, 10222), (2690, 9956), (4978, 5380), (5111, 5240)]