21760960

素因数分解:

$2^6\times 5^1\times {\mathrm{13}}^1\times {\mathrm{5231}}^1$

素因数の和:5261

約数の個数: 56

約数和(自身を含む): 55814976

約数和(自身を除く): 34054016

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 64, 65, 80, 104, 130, 160, 208, 260, 320, 416, 520, 832, 1040, 2080, 4160, 5231, 10462, 20924, 26155, 41848, 52310, 68003, 83696, 104620, 136006, 167392, 209240, 272012, 334784, 340015, 418480, 544024, 680030, 836960, 1088048, 1360060, 1673920, 2176096, 2720120, 4352192, 5440240, 10880480, 21760960]

約数ペア:

[(1, 21760960), (2, 10880480), (4, 5440240), (5, 4352192), (8, 2720120), (10, 2176096), (13, 1673920), (16, 1360060), (20, 1088048), (26, 836960), (32, 680030), (40, 544024), (52, 418480), (64, 340015), (65, 334784), (80, 272012), (104, 209240), (130, 167392), (160, 136006), (208, 104620), (260, 83696), (320, 68003), (416, 52310), (520, 41848), (832, 26155), (1040, 20924), (2080, 10462), (4160, 5231)]