20124881440

素因数分解:

$2^5\times 5^1\times {\mathrm{20297}}^1\times {\mathrm{6197}}^1$

素因数の和:26509

約数の個数: 48

約数和(自身を含む): 47555047512

約数和(自身を除く): 27430166072

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 6197, 12394, 20297, 24788, 30985, 40594, 49576, 61970, 81188, 99152, 101485, 123940, 162376, 198304, 202970, 247880, 324752, 405940, 495760, 649504, 811880, 991520, 1623760, 3247520, 125780509, 251561018, 503122036, 628902545, 1006244072, 1257805090, 2012488144, 2515610180, 4024976288, 5031220360, 10062440720, 20124881440]

約数ペア:

[(1, 20124881440), (2, 10062440720), (4, 5031220360), (5, 4024976288), (8, 2515610180), (10, 2012488144), (16, 1257805090), (20, 1006244072), (32, 628902545), (40, 503122036), (80, 251561018), (160, 125780509), (6197, 3247520), (12394, 1623760), (20297, 991520), (24788, 811880), (30985, 649504), (40594, 495760), (49576, 405940), (61970, 324752), (81188, 247880), (99152, 202970), (101485, 198304), (123940, 162376)]