129899980

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{83}}^1\times {\mathrm{1597}}^1$

素因数の和:1703

約数の個数: 72

約数和(自身を含む): 321351408

約数和(自身を除く): 191451428

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 83, 98, 140, 166, 196, 245, 332, 415, 490, 581, 830, 980, 1162, 1597, 1660, 2324, 2905, 3194, 4067, 5810, 6388, 7985, 8134, 11179, 11620, 15970, 16268, 20335, 22358, 31940, 40670, 44716, 55895, 78253, 81340, 111790, 132551, 156506, 223580, 265102, 313012, 391265, 530204, 662755, 782530, 927857, 1325510, 1565060, 1855714, 2651020, 3711428, 4639285, 6494999, 9278570, 12989998, 18557140, 25979996, 32474995, 64949990, 129899980]

約数ペア:

[(1, 129899980), (2, 64949990), (4, 32474995), (5, 25979996), (7, 18557140), (10, 12989998), (14, 9278570), (20, 6494999), (28, 4639285), (35, 3711428), (49, 2651020), (70, 1855714), (83, 1565060), (98, 1325510), (140, 927857), (166, 782530), (196, 662755), (245, 530204), (332, 391265), (415, 313012), (490, 265102), (581, 223580), (830, 156506), (980, 132551), (1162, 111790), (1597, 81340), (1660, 78253), (2324, 55895), (2905, 44716), (3194, 40670), (4067, 31940), (5810, 22358), (6388, 20335), (7985, 16268), (8134, 15970), (11179, 11620)]