20636940

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{41}}^1\times {\mathrm{8389}}^1$

素因数の和:8442

約数の個数: 48

約数和(自身を含む): 59199840

約数和(自身を除く): 38562900

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 41, 60, 82, 123, 164, 205, 246, 410, 492, 615, 820, 1230, 2460, 8389, 16778, 25167, 33556, 41945, 50334, 83890, 100668, 125835, 167780, 251670, 343949, 503340, 687898, 1031847, 1375796, 1719745, 2063694, 3439490, 4127388, 5159235, 6878980, 10318470, 20636940]

約数ペア:

[(1, 20636940), (2, 10318470), (3, 6878980), (4, 5159235), (5, 4127388), (6, 3439490), (10, 2063694), (12, 1719745), (15, 1375796), (20, 1031847), (30, 687898), (41, 503340), (60, 343949), (82, 251670), (123, 167780), (164, 125835), (205, 100668), (246, 83890), (410, 50334), (492, 41945), (615, 33556), (820, 25167), (1230, 16778), (2460, 8389)]