806875100

素因数分解:

$2^2\times 5^2\times {\mathrm{97}}^1\times {\mathrm{193}}^1\times {\mathrm{431}}^1$

素因数の和:735

約数の個数: 72

約数和(自身を含む): 1782260928

約数和(自身を除く): 975385828

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 97, 100, 193, 194, 386, 388, 431, 485, 772, 862, 965, 970, 1724, 1930, 1940, 2155, 2425, 3860, 4310, 4825, 4850, 8620, 9650, 9700, 10775, 18721, 19300, 21550, 37442, 41807, 43100, 74884, 83183, 83614, 93605, 166366, 167228, 187210, 209035, 332732, 374420, 415915, 418070, 468025, 831830, 836140, 936050, 1045175, 1663660, 1872100, 2079575, 2090350, 4159150, 4180700, 8068751, 8318300, 16137502, 32275004, 40343755, 80687510, 161375020, 201718775, 403437550, 806875100]

約数ペア:

[(1, 806875100), (2, 403437550), (4, 201718775), (5, 161375020), (10, 80687510), (20, 40343755), (25, 32275004), (50, 16137502), (97, 8318300), (100, 8068751), (193, 4180700), (194, 4159150), (386, 2090350), (388, 2079575), (431, 1872100), (485, 1663660), (772, 1045175), (862, 936050), (965, 836140), (970, 831830), (1724, 468025), (1930, 418070), (1940, 415915), (2155, 374420), (2425, 332732), (3860, 209035), (4310, 187210), (4825, 167228), (4850, 166366), (8620, 93605), (9650, 83614), (9700, 83183), (10775, 74884), (18721, 43100), (19300, 41807), (21550, 37442)]