420540

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{163}}^1$

素因数の和:218

約数の個数: 48

約数和(自身を含む): 1212288

約数和(自身を除く): 791748

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 43, 60, 86, 129, 163, 172, 215, 258, 326, 430, 489, 516, 645, 652, 815, 860, 978, 1290, 1630, 1956, 2445, 2580, 3260, 4890, 7009, 9780, 14018, 21027, 28036, 35045, 42054, 70090, 84108, 105135, 140180, 210270, 420540]

約数ペア:

[(1, 420540), (2, 210270), (3, 140180), (4, 105135), (5, 84108), (6, 70090), (10, 42054), (12, 35045), (15, 28036), (20, 21027), (30, 14018), (43, 9780), (60, 7009), (86, 4890), (129, 3260), (163, 2580), (172, 2445), (215, 1956), (258, 1630), (326, 1290), (430, 978), (489, 860), (516, 815), (645, 652)]