1972503820

素因数分解:

$2^2\times 5^1\times 7^3\times {\mathrm{287537}}^1$

素因数の和:287567

約数の個数: 48

約数和(自身を含む): 4830638400

約数和(自身を除く): 2858134580

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, 3430, 6860, 287537, 575074, 1150148, 1437685, 2012759, 2875370, 4025518, 5750740, 8051036, 10063795, 14089313, 20127590, 28178626, 40255180, 56357252, 70446565, 98625191, 140893130, 197250382, 281786260, 394500764, 493125955, 986251910, 1972503820]

約数ペア:

[(1, 1972503820), (2, 986251910), (4, 493125955), (5, 394500764), (7, 281786260), (10, 197250382), (14, 140893130), (20, 98625191), (28, 70446565), (35, 56357252), (49, 40255180), (70, 28178626), (98, 20127590), (140, 14089313), (196, 10063795), (245, 8051036), (343, 5750740), (490, 4025518), (686, 2875370), (980, 2012759), (1372, 1437685), (1715, 1150148), (3430, 575074), (6860, 287537)]