20298408

素因数分解:

$2^3\times 3^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{89}}^1$

素因数の和:171

約数の個数: 128

約数和(自身を含む): 59875200

約数和(自身を除く): 39576792

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 17, 24, 26, 34, 39, 43, 51, 52, 68, 78, 86, 89, 102, 104, 129, 136, 156, 172, 178, 204, 221, 258, 267, 312, 344, 356, 408, 442, 516, 534, 559, 663, 712, 731, 884, 1032, 1068, 1118, 1157, 1326, 1462, 1513, 1677, 1768, 2136, 2193, 2236, 2314, 2652, 2924, 3026, 3354, 3471, 3827, 4386, 4472, 4539, 4628, 5304, 5848, 6052, 6708, 6942, 7654, 8772, 9078, 9256, 9503, 11481, 12104, 13416, 13884, 15308, 17544, 18156, 19006, 19669, 22962, 27768, 28509, 30616, 36312, 38012, 39338, 45924, 49751, 57018, 59007, 65059, 76024, 78676, 91848, 99502, 114036, 118014, 130118, 149253, 157352, 195177, 199004, 228072, 236028, 260236, 298506, 390354, 398008, 472056, 520472, 597012, 780708, 845767, 1194024, 1561416, 1691534, 2537301, 3383068, 5074602, 6766136, 10149204, 20298408]

約数ペア:

[(1, 20298408), (2, 10149204), (3, 6766136), (4, 5074602), (6, 3383068), (8, 2537301), (12, 1691534), (13, 1561416), (17, 1194024), (24, 845767), (26, 780708), (34, 597012), (39, 520472), (43, 472056), (51, 398008), (52, 390354), (68, 298506), (78, 260236), (86, 236028), (89, 228072), (102, 199004), (104, 195177), (129, 157352), (136, 149253), (156, 130118), (172, 118014), (178, 114036), (204, 99502), (221, 91848), (258, 78676), (267, 76024), (312, 65059), (344, 59007), (356, 57018), (408, 49751), (442, 45924), (516, 39338), (534, 38012), (559, 36312), (663, 30616), (712, 28509), (731, 27768), (884, 22962), (1032, 19669), (1068, 19006), (1118, 18156), (1157, 17544), (1326, 15308), (1462, 13884), (1513, 13416), (1677, 12104), (1768, 11481), (2136, 9503), (2193, 9256), (2236, 9078), (2314, 8772), (2652, 7654), (2924, 6942), (3026, 6708), (3354, 6052), (3471, 5848), (3827, 5304), (4386, 4628), (4472, 4539)]