18666690

素因数分解:

$2^1\times 3^1\times 5^1\times 7^1\times {\mathrm{103}}^1\times {\mathrm{863}}^1$

素因数の和:983

約数の個数: 64

約数和(自身を含む): 51757056

約数和(自身を除く): 33090366

約数列:

[1, 2, 3, 5, 6, 7, 10, 14, 15, 21, 30, 35, 42, 70, 103, 105, 206, 210, 309, 515, 618, 721, 863, 1030, 1442, 1545, 1726, 2163, 2589, 3090, 3605, 4315, 4326, 5178, 6041, 7210, 8630, 10815, 12082, 12945, 18123, 21630, 25890, 30205, 36246, 60410, 88889, 90615, 177778, 181230, 266667, 444445, 533334, 622223, 888890, 1244446, 1333335, 1866669, 2666670, 3111115, 3733338, 6222230, 9333345, 18666690]

約数ペア:

[(1, 18666690), (2, 9333345), (3, 6222230), (5, 3733338), (6, 3111115), (7, 2666670), (10, 1866669), (14, 1333335), (15, 1244446), (21, 888890), (30, 622223), (35, 533334), (42, 444445), (70, 266667), (103, 181230), (105, 177778), (206, 90615), (210, 88889), (309, 60410), (515, 36246), (618, 30205), (721, 25890), (863, 21630), (1030, 18123), (1442, 12945), (1545, 12082), (1726, 10815), (2163, 8630), (2589, 7210), (3090, 6041), (3605, 5178), (4315, 4326)]