123508420

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{193}}^1\times {\mathrm{653}}^1$

素因数の和:869

約数の個数: 72

約数和(自身を含む): 303741144

約数和(自身を除く): 180232724

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 193, 196, 245, 386, 490, 653, 772, 965, 980, 1306, 1351, 1930, 2612, 2702, 3265, 3860, 4571, 5404, 6530, 6755, 9142, 9457, 13060, 13510, 18284, 18914, 22855, 27020, 31997, 37828, 45710, 47285, 63994, 91420, 94570, 126029, 127988, 159985, 189140, 252058, 319970, 504116, 630145, 639940, 882203, 1260290, 1764406, 2520580, 3528812, 4411015, 6175421, 8822030, 12350842, 17644060, 24701684, 30877105, 61754210, 123508420]

約数ペア:

[(1, 123508420), (2, 61754210), (4, 30877105), (5, 24701684), (7, 17644060), (10, 12350842), (14, 8822030), (20, 6175421), (28, 4411015), (35, 3528812), (49, 2520580), (70, 1764406), (98, 1260290), (140, 882203), (193, 639940), (196, 630145), (245, 504116), (386, 319970), (490, 252058), (653, 189140), (772, 159985), (965, 127988), (980, 126029), (1306, 94570), (1351, 91420), (1930, 63994), (2612, 47285), (2702, 45710), (3265, 37828), (3860, 31997), (4571, 27020), (5404, 22855), (6530, 18914), (6755, 18284), (9142, 13510), (9457, 13060)]