18423020

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{1709}}^1$

素因数の和:1743

約数の個数: 72

約数和(自身を含む): 49124880

約数和(自身を除く): 30701860

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 28, 35, 44, 49, 55, 70, 77, 98, 110, 140, 154, 196, 220, 245, 308, 385, 490, 539, 770, 980, 1078, 1540, 1709, 2156, 2695, 3418, 5390, 6836, 8545, 10780, 11963, 17090, 18799, 23926, 34180, 37598, 47852, 59815, 75196, 83741, 93995, 119630, 131593, 167482, 187990, 239260, 263186, 334964, 375980, 418705, 526372, 657965, 837410, 921151, 1315930, 1674820, 1842302, 2631860, 3684604, 4605755, 9211510, 18423020]

約数ペア:

[(1, 18423020), (2, 9211510), (4, 4605755), (5, 3684604), (7, 2631860), (10, 1842302), (11, 1674820), (14, 1315930), (20, 921151), (22, 837410), (28, 657965), (35, 526372), (44, 418705), (49, 375980), (55, 334964), (70, 263186), (77, 239260), (98, 187990), (110, 167482), (140, 131593), (154, 119630), (196, 93995), (220, 83741), (245, 75196), (308, 59815), (385, 47852), (490, 37598), (539, 34180), (770, 23926), (980, 18799), (1078, 17090), (1540, 11963), (1709, 10780), (2156, 8545), (2695, 6836), (3418, 5390)]