81260320

素因数分解:

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

素因数の和:338

約数の個数: 96

約数和(自身を含む): 201942720

約数和(自身を除く): 120682400

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 29, 32, 40, 58, 80, 83, 116, 145, 160, 166, 211, 232, 290, 332, 415, 422, 464, 580, 664, 830, 844, 928, 1055, 1160, 1328, 1660, 1688, 2110, 2320, 2407, 2656, 3320, 3376, 4220, 4640, 4814, 6119, 6640, 6752, 8440, 9628, 12035, 12238, 13280, 16880, 17513, 19256, 24070, 24476, 30595, 33760, 35026, 38512, 48140, 48952, 61190, 70052, 77024, 87565, 96280, 97904, 122380, 140104, 175130, 192560, 195808, 244760, 280208, 350260, 385120, 489520, 507877, 560416, 700520, 979040, 1015754, 1401040, 2031508, 2539385, 2802080, 4063016, 5078770, 8126032, 10157540, 16252064, 20315080, 40630160, 81260320]

約数ペア:

[(1, 81260320), (2, 40630160), (4, 20315080), (5, 16252064), (8, 10157540), (10, 8126032), (16, 5078770), (20, 4063016), (29, 2802080), (32, 2539385), (40, 2031508), (58, 1401040), (80, 1015754), (83, 979040), (116, 700520), (145, 560416), (160, 507877), (166, 489520), (211, 385120), (232, 350260), (290, 280208), (332, 244760), (415, 195808), (422, 192560), (464, 175130), (580, 140104), (664, 122380), (830, 97904), (844, 96280), (928, 87565), (1055, 77024), (1160, 70052), (1328, 61190), (1660, 48952), (1688, 48140), (2110, 38512), (2320, 35026), (2407, 33760), (2656, 30595), (3320, 24476), (3376, 24070), (4220, 19256), (4640, 17513), (4814, 16880), (6119, 13280), (6640, 12238), (6752, 12035), (8440, 9628)]