19960497880

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{1049}}^1\times {\mathrm{25037}}^1$

素因数の和:26116

約数の個数: 64

約数和(自身を含む): 47321820000

約数和(自身を除く): 27361322120

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 76, 95, 152, 190, 380, 760, 1049, 2098, 4196, 5245, 8392, 10490, 19931, 20980, 25037, 39862, 41960, 50074, 79724, 99655, 100148, 125185, 159448, 199310, 200296, 250370, 398620, 475703, 500740, 797240, 951406, 1001480, 1902812, 2378515, 3805624, 4757030, 9514060, 19028120, 26263813, 52527626, 105055252, 131319065, 210110504, 262638130, 499012447, 525276260, 998024894, 1050552520, 1996049788, 2495062235, 3992099576, 4990124470, 9980248940, 19960497880]

約数ペア:

[(1, 19960497880), (2, 9980248940), (4, 4990124470), (5, 3992099576), (8, 2495062235), (10, 1996049788), (19, 1050552520), (20, 998024894), (38, 525276260), (40, 499012447), (76, 262638130), (95, 210110504), (152, 131319065), (190, 105055252), (380, 52527626), (760, 26263813), (1049, 19028120), (2098, 9514060), (4196, 4757030), (5245, 3805624), (8392, 2378515), (10490, 1902812), (19931, 1001480), (20980, 951406), (25037, 797240), (39862, 500740), (41960, 475703), (50074, 398620), (79724, 250370), (99655, 200296), (100148, 199310), (125185, 159448)]