20667680

素因数分解:

$2^5\times 5^1\times {\mathrm{11}}^1\times {\mathrm{11743}}^1$

素因数の和:11769

約数の個数: 48

約数和(自身を含む): 53270784

約数和(自身を除く): 32603104

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 32, 40, 44, 55, 80, 88, 110, 160, 176, 220, 352, 440, 880, 1760, 11743, 23486, 46972, 58715, 93944, 117430, 129173, 187888, 234860, 258346, 375776, 469720, 516692, 645865, 939440, 1033384, 1291730, 1878880, 2066768, 2583460, 4133536, 5166920, 10333840, 20667680]

約数ペア:

[(1, 20667680), (2, 10333840), (4, 5166920), (5, 4133536), (8, 2583460), (10, 2066768), (11, 1878880), (16, 1291730), (20, 1033384), (22, 939440), (32, 645865), (40, 516692), (44, 469720), (55, 375776), (80, 258346), (88, 234860), (110, 187888), (160, 129173), (176, 117430), (220, 93944), (352, 58715), (440, 46972), (880, 23486), (1760, 11743)]