15697561900

素因数分解:

$2^2\times 5^2\times {\mathrm{89}}^1\times {\mathrm{139}}^1\times {\mathrm{12689}}^1$

素因数の和:12931

約数の個数: 72

約数和(自身を含む): 34696998000

約数和(自身を除く): 18999436100

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 89, 100, 139, 178, 278, 356, 445, 556, 695, 890, 1390, 1780, 2225, 2780, 3475, 4450, 6950, 8900, 12371, 12689, 13900, 24742, 25378, 49484, 50756, 61855, 63445, 123710, 126890, 247420, 253780, 309275, 317225, 618550, 634450, 1129321, 1237100, 1268900, 1763771, 2258642, 3527542, 4517284, 5646605, 7055084, 8818855, 11293210, 17637710, 22586420, 28233025, 35275420, 44094275, 56466050, 88188550, 112932100, 156975619, 176377100, 313951238, 627902476, 784878095, 1569756190, 3139512380, 3924390475, 7848780950, 15697561900]

約数ペア:

[(1, 15697561900), (2, 7848780950), (4, 3924390475), (5, 3139512380), (10, 1569756190), (20, 784878095), (25, 627902476), (50, 313951238), (89, 176377100), (100, 156975619), (139, 112932100), (178, 88188550), (278, 56466050), (356, 44094275), (445, 35275420), (556, 28233025), (695, 22586420), (890, 17637710), (1390, 11293210), (1780, 8818855), (2225, 7055084), (2780, 5646605), (3475, 4517284), (4450, 3527542), (6950, 2258642), (8900, 1763771), (12371, 1268900), (12689, 1237100), (13900, 1129321), (24742, 634450), (25378, 618550), (49484, 317225), (50756, 309275), (61855, 253780), (63445, 247420), (123710, 126890)]