20103500

素因数分解:

$2^2\times 5^3\times {\mathrm{31}}^1\times {\mathrm{1297}}^1$

素因数の和:1347

約数の個数: 48

約数和(自身を含む): 45357312

約数和(自身を除く): 25253812

約数列:

[1, 2, 4, 5, 10, 20, 25, 31, 50, 62, 100, 124, 125, 155, 250, 310, 500, 620, 775, 1297, 1550, 2594, 3100, 3875, 5188, 6485, 7750, 12970, 15500, 25940, 32425, 40207, 64850, 80414, 129700, 160828, 162125, 201035, 324250, 402070, 648500, 804140, 1005175, 2010350, 4020700, 5025875, 10051750, 20103500]

約数ペア:

[(1, 20103500), (2, 10051750), (4, 5025875), (5, 4020700), (10, 2010350), (20, 1005175), (25, 804140), (31, 648500), (50, 402070), (62, 324250), (100, 201035), (124, 162125), (125, 160828), (155, 129700), (250, 80414), (310, 64850), (500, 40207), (620, 32425), (775, 25940), (1297, 15500), (1550, 12970), (2594, 7750), (3100, 6485), (3875, 5188)]