13078280

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{53}}^1\times {\mathrm{199}}^1$

素因数の和:294

約数の個数: 64

約数和(自身を含む): 31104000

約数和(自身を除く): 18025720

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 53, 62, 106, 124, 155, 199, 212, 248, 265, 310, 398, 424, 530, 620, 796, 995, 1060, 1240, 1592, 1643, 1990, 2120, 3286, 3980, 6169, 6572, 7960, 8215, 10547, 12338, 13144, 16430, 21094, 24676, 30845, 32860, 42188, 49352, 52735, 61690, 65720, 84376, 105470, 123380, 210940, 246760, 326957, 421880, 653914, 1307828, 1634785, 2615656, 3269570, 6539140, 13078280]

約数ペア:

[(1, 13078280), (2, 6539140), (4, 3269570), (5, 2615656), (8, 1634785), (10, 1307828), (20, 653914), (31, 421880), (40, 326957), (53, 246760), (62, 210940), (106, 123380), (124, 105470), (155, 84376), (199, 65720), (212, 61690), (248, 52735), (265, 49352), (310, 42188), (398, 32860), (424, 30845), (530, 24676), (620, 21094), (796, 16430), (995, 13144), (1060, 12338), (1240, 10547), (1592, 8215), (1643, 7960), (1990, 6572), (2120, 6169), (3286, 3980)]