20402301500

素因数分解:

$2^2\times 5^3\times 7^2\times {\mathrm{832747}}^1$

素因数の和:832780

約数の個数: 72

約数和(自身を含む): 51833566512

約数和(自身を除く): 31431265012

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 25, 28, 35, 49, 50, 70, 98, 100, 125, 140, 175, 196, 245, 250, 350, 490, 500, 700, 875, 980, 1225, 1750, 2450, 3500, 4900, 6125, 12250, 24500, 832747, 1665494, 3330988, 4163735, 5829229, 8327470, 11658458, 16654940, 20818675, 23316916, 29146145, 40804603, 41637350, 58292290, 81609206, 83274700, 104093375, 116584580, 145730725, 163218412, 204023015, 208186750, 291461450, 408046030, 416373500, 582922900, 728653625, 816092060, 1020115075, 1457307250, 2040230150, 2914614500, 4080460300, 5100575375, 10201150750, 20402301500]

約数ペア:

[(1, 20402301500), (2, 10201150750), (4, 5100575375), (5, 4080460300), (7, 2914614500), (10, 2040230150), (14, 1457307250), (20, 1020115075), (25, 816092060), (28, 728653625), (35, 582922900), (49, 416373500), (50, 408046030), (70, 291461450), (98, 208186750), (100, 204023015), (125, 163218412), (140, 145730725), (175, 116584580), (196, 104093375), (245, 83274700), (250, 81609206), (350, 58292290), (490, 41637350), (500, 40804603), (700, 29146145), (875, 23316916), (980, 20818675), (1225, 16654940), (1750, 11658458), (2450, 8327470), (3500, 5829229), (4900, 4163735), (6125, 3330988), (12250, 1665494), (24500, 832747)]