20686330

素因数分解:

$2^1\times 5^1\times 7^3\times {\mathrm{37}}^1\times {\mathrm{163}}^1$

素因数の和:228

約数の個数: 64

約数和(自身を含む): 44870400

約数和(自身を除く): 24184070

約数列:

[1, 2, 5, 7, 10, 14, 35, 37, 49, 70, 74, 98, 163, 185, 245, 259, 326, 343, 370, 490, 518, 686, 815, 1141, 1295, 1630, 1715, 1813, 2282, 2590, 3430, 3626, 5705, 6031, 7987, 9065, 11410, 12062, 12691, 15974, 18130, 25382, 30155, 39935, 42217, 55909, 60310, 63455, 79870, 84434, 111818, 126910, 211085, 279545, 295519, 422170, 559090, 591038, 1477595, 2068633, 2955190, 4137266, 10343165, 20686330]

約数ペア:

[(1, 20686330), (2, 10343165), (5, 4137266), (7, 2955190), (10, 2068633), (14, 1477595), (35, 591038), (37, 559090), (49, 422170), (70, 295519), (74, 279545), (98, 211085), (163, 126910), (185, 111818), (245, 84434), (259, 79870), (326, 63455), (343, 60310), (370, 55909), (490, 42217), (518, 39935), (686, 30155), (815, 25382), (1141, 18130), (1295, 15974), (1630, 12691), (1715, 12062), (1813, 11410), (2282, 9065), (2590, 7987), (3430, 6031), (3626, 5705)]