2000451875

素因数分解:

$5^4\times {\mathrm{53}}^1\times {\mathrm{131}}^1\times {\mathrm{461}}^1$

素因数の和:665

約数の個数: 40

約数和(自身を含む): 2571939216

約数和(自身を除く): 571487341

約数列:

[1, 5, 25, 53, 125, 131, 265, 461, 625, 655, 1325, 2305, 3275, 6625, 6943, 11525, 16375, 24433, 33125, 34715, 57625, 60391, 81875, 122165, 173575, 288125, 301955, 610825, 867875, 1509775, 3054125, 3200723, 4339375, 7548875, 15270625, 16003615, 37744375, 80018075, 400090375, 2000451875]

約数ペア:

[(1, 2000451875), (5, 400090375), (25, 80018075), (53, 37744375), (125, 16003615), (131, 15270625), (265, 7548875), (461, 4339375), (625, 3200723), (655, 3054125), (1325, 1509775), (2305, 867875), (3275, 610825), (6625, 301955), (6943, 288125), (11525, 173575), (16375, 122165), (24433, 81875), (33125, 60391), (34715, 57625)]