20196500

素因数分解:

$2^2\times 5^3\times {\mathrm{31}}^1\times {\mathrm{1303}}^1$

素因数の和:1353

約数の個数: 48

約数和(自身を含む): 45566976

約数和(自身を除く): 25370476

約数列:

[1, 2, 4, 5, 10, 20, 25, 31, 50, 62, 100, 124, 125, 155, 250, 310, 500, 620, 775, 1303, 1550, 2606, 3100, 3875, 5212, 6515, 7750, 13030, 15500, 26060, 32575, 40393, 65150, 80786, 130300, 161572, 162875, 201965, 325750, 403930, 651500, 807860, 1009825, 2019650, 4039300, 5049125, 10098250, 20196500]

約数ペア:

[(1, 20196500), (2, 10098250), (4, 5049125), (5, 4039300), (10, 2019650), (20, 1009825), (25, 807860), (31, 651500), (50, 403930), (62, 325750), (100, 201965), (124, 162875), (125, 161572), (155, 130300), (250, 80786), (310, 65150), (500, 40393), (620, 32575), (775, 26060), (1303, 15500), (1550, 13030), (2606, 7750), (3100, 6515), (3875, 5212)]