20117800

素因数分解:

$2^3\times 5^2\times {\mathrm{17}}^1\times {\mathrm{61}}^1\times {\mathrm{97}}^1$

素因数の和:191

約数の個数: 96

約数和(自身を含む): 50856120

約数和(自身を除く): 30738320

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 25, 34, 40, 50, 61, 68, 85, 97, 100, 122, 136, 170, 194, 200, 244, 305, 340, 388, 425, 485, 488, 610, 680, 776, 850, 970, 1037, 1220, 1525, 1649, 1700, 1940, 2074, 2425, 2440, 3050, 3298, 3400, 3880, 4148, 4850, 5185, 5917, 6100, 6596, 8245, 8296, 9700, 10370, 11834, 12200, 13192, 16490, 19400, 20740, 23668, 25925, 29585, 32980, 41225, 41480, 47336, 51850, 59170, 65960, 82450, 100589, 103700, 118340, 147925, 164900, 201178, 207400, 236680, 295850, 329800, 402356, 502945, 591700, 804712, 1005890, 1183400, 2011780, 2514725, 4023560, 5029450, 10058900, 20117800]

約数ペア:

[(1, 20117800), (2, 10058900), (4, 5029450), (5, 4023560), (8, 2514725), (10, 2011780), (17, 1183400), (20, 1005890), (25, 804712), (34, 591700), (40, 502945), (50, 402356), (61, 329800), (68, 295850), (85, 236680), (97, 207400), (100, 201178), (122, 164900), (136, 147925), (170, 118340), (194, 103700), (200, 100589), (244, 82450), (305, 65960), (340, 59170), (388, 51850), (425, 47336), (485, 41480), (488, 41225), (610, 32980), (680, 29585), (776, 25925), (850, 23668), (970, 20740), (1037, 19400), (1220, 16490), (1525, 13192), (1649, 12200), (1700, 11834), (1940, 10370), (2074, 9700), (2425, 8296), (2440, 8245), (3050, 6596), (3298, 6100), (3400, 5917), (3880, 5185), (4148, 4850)]