18364220

素因数分解:

$2^2\times 5^1\times 7^3\times {\mathrm{2677}}^1$

素因数の和:2707

約数の個数: 48

約数和(自身を含む): 44990400

約数和(自身を除く): 26626180

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 343, 490, 686, 980, 1372, 1715, 2677, 3430, 5354, 6860, 10708, 13385, 18739, 26770, 37478, 53540, 74956, 93695, 131173, 187390, 262346, 374780, 524692, 655865, 918211, 1311730, 1836422, 2623460, 3672844, 4591055, 9182110, 18364220]

約数ペア:

[(1, 18364220), (2, 9182110), (4, 4591055), (5, 3672844), (7, 2623460), (10, 1836422), (14, 1311730), (20, 918211), (28, 655865), (35, 524692), (49, 374780), (70, 262346), (98, 187390), (140, 131173), (196, 93695), (245, 74956), (343, 53540), (490, 37478), (686, 26770), (980, 18739), (1372, 13385), (1715, 10708), (2677, 6860), (3430, 5354)]