20565800668

素因数分解:

$2^2\times 7^1\times {\mathrm{89}}^1\times {\mathrm{113}}^1\times {\mathrm{199}}^1\times {\mathrm{367}}^1$

素因数の和:779

約数の個数: 96

約数和(自身を含む): 42287616000

約数和(自身を除く): 21721815332

約数列:

[1, 2, 4, 7, 14, 28, 89, 113, 178, 199, 226, 356, 367, 398, 452, 623, 734, 791, 796, 1246, 1393, 1468, 1582, 2492, 2569, 2786, 3164, 5138, 5572, 10057, 10276, 17711, 20114, 22487, 32663, 35422, 40228, 41471, 44974, 65326, 70399, 70844, 73033, 82942, 89948, 123977, 130652, 140798, 146066, 157409, 165884, 228641, 247954, 281596, 290297, 292132, 314818, 457282, 495908, 511231, 580594, 629636, 914564, 1022462, 1161188, 2001343, 2044924, 3690919, 4002686, 6499937, 7381838, 8005372, 8252729, 12999874, 14009401, 14763676, 16505458, 25836433, 25999748, 28018802, 33010916, 45499559, 51672866, 56037604, 57769103, 90999118, 103345732, 115538206, 181998236, 231076412, 734492881, 1468985762, 2937971524, 5141450167, 10282900334, 20565800668]

約数ペア:

[(1, 20565800668), (2, 10282900334), (4, 5141450167), (7, 2937971524), (14, 1468985762), (28, 734492881), (89, 231076412), (113, 181998236), (178, 115538206), (199, 103345732), (226, 90999118), (356, 57769103), (367, 56037604), (398, 51672866), (452, 45499559), (623, 33010916), (734, 28018802), (791, 25999748), (796, 25836433), (1246, 16505458), (1393, 14763676), (1468, 14009401), (1582, 12999874), (2492, 8252729), (2569, 8005372), (2786, 7381838), (3164, 6499937), (5138, 4002686), (5572, 3690919), (10057, 2044924), (10276, 2001343), (17711, 1161188), (20114, 1022462), (22487, 914564), (32663, 629636), (35422, 580594), (40228, 511231), (41471, 495908), (44974, 457282), (65326, 314818), (70399, 292132), (70844, 290297), (73033, 281596), (82942, 247954), (89948, 228641), (123977, 165884), (130652, 157409), (140798, 146066)]