21787672720

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{24758719}}^1$

素因数の和:24758743

約数の個数: 40

約数和(自身を含む): 55261463040

約数和(自身を除く): 33473790320

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 80, 88, 110, 176, 220, 440, 880, 24758719, 49517438, 99034876, 123793595, 198069752, 247587190, 272345909, 396139504, 495174380, 544691818, 990348760, 1089383636, 1361729545, 1980697520, 2178767272, 2723459090, 4357534544, 5446918180, 10893836360, 21787672720]

約数ペア:

[(1, 21787672720), (2, 10893836360), (4, 5446918180), (5, 4357534544), (8, 2723459090), (10, 2178767272), (11, 1980697520), (16, 1361729545), (20, 1089383636), (22, 990348760), (40, 544691818), (44, 495174380), (55, 396139504), (80, 272345909), (88, 247587190), (110, 198069752), (176, 123793595), (220, 99034876), (440, 49517438), (880, 24758719)]