20315080

素因数分解:

$2^3\times 5^1\times {\mathrm{29}}^1\times {\mathrm{83}}^1\times {\mathrm{211}}^1$

素因数の和:334

約数の個数: 64

約数和(自身を含む): 48081600

約数和(自身を除く): 27766520

約数列:

[1, 2, 4, 5, 8, 10, 20, 29, 40, 58, 83, 116, 145, 166, 211, 232, 290, 332, 415, 422, 580, 664, 830, 844, 1055, 1160, 1660, 1688, 2110, 2407, 3320, 4220, 4814, 6119, 8440, 9628, 12035, 12238, 17513, 19256, 24070, 24476, 30595, 35026, 48140, 48952, 61190, 70052, 87565, 96280, 122380, 140104, 175130, 244760, 350260, 507877, 700520, 1015754, 2031508, 2539385, 4063016, 5078770, 10157540, 20315080]

約数ペア:

[(1, 20315080), (2, 10157540), (4, 5078770), (5, 4063016), (8, 2539385), (10, 2031508), (20, 1015754), (29, 700520), (40, 507877), (58, 350260), (83, 244760), (116, 175130), (145, 140104), (166, 122380), (211, 96280), (232, 87565), (290, 70052), (332, 61190), (415, 48952), (422, 48140), (580, 35026), (664, 30595), (830, 24476), (844, 24070), (1055, 19256), (1160, 17513), (1660, 12238), (1688, 12035), (2110, 9628), (2407, 8440), (3320, 6119), (4220, 4814)]