12961280

素因数分解:

$2^9\times 5^1\times {\mathrm{61}}^1\times {\mathrm{83}}^1$

素因数の和:167

約数の個数: 80

約数和(自身を含む): 31966704

約数和(自身を除く): 19005424

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 61, 64, 80, 83, 122, 128, 160, 166, 244, 256, 305, 320, 332, 415, 488, 512, 610, 640, 664, 830, 976, 1220, 1280, 1328, 1660, 1952, 2440, 2560, 2656, 3320, 3904, 4880, 5063, 5312, 6640, 7808, 9760, 10126, 10624, 13280, 15616, 19520, 20252, 21248, 25315, 26560, 31232, 39040, 40504, 42496, 50630, 53120, 78080, 81008, 101260, 106240, 156160, 162016, 202520, 212480, 324032, 405040, 648064, 810080, 1296128, 1620160, 2592256, 3240320, 6480640, 12961280]

約数ペア:

[(1, 12961280), (2, 6480640), (4, 3240320), (5, 2592256), (8, 1620160), (10, 1296128), (16, 810080), (20, 648064), (32, 405040), (40, 324032), (61, 212480), (64, 202520), (80, 162016), (83, 156160), (122, 106240), (128, 101260), (160, 81008), (166, 78080), (244, 53120), (256, 50630), (305, 42496), (320, 40504), (332, 39040), (415, 31232), (488, 26560), (512, 25315), (610, 21248), (640, 20252), (664, 19520), (830, 15616), (976, 13280), (1220, 10624), (1280, 10126), (1328, 9760), (1660, 7808), (1952, 6640), (2440, 5312), (2560, 5063), (2656, 4880), (3320, 3904)]