20123320

素因数分解:

$2^3\times 5^1\times 7^2\times {\mathrm{10267}}^1$

素因数の和:10292

約数の個数: 48

約数和(自身を含む): 52674840

約数和(自身を除く): 32551520

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 49, 56, 70, 98, 140, 196, 245, 280, 392, 490, 980, 1960, 10267, 20534, 41068, 51335, 71869, 82136, 102670, 143738, 205340, 287476, 359345, 410680, 503083, 574952, 718690, 1006166, 1437380, 2012332, 2515415, 2874760, 4024664, 5030830, 10061660, 20123320]

約数ペア:

[(1, 20123320), (2, 10061660), (4, 5030830), (5, 4024664), (7, 2874760), (8, 2515415), (10, 2012332), (14, 1437380), (20, 1006166), (28, 718690), (35, 574952), (40, 503083), (49, 410680), (56, 359345), (70, 287476), (98, 205340), (140, 143738), (196, 102670), (245, 82136), (280, 71869), (392, 51335), (490, 41068), (980, 20534), (1960, 10267)]