20227947880

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{6421}}^1\times {\mathrm{11251}}^1$

素因数の和:17690

約数の個数: 64

約数和(自身を含む): 52027447680

約数和(自身を除く): 31799499800

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 6421, 11251, 12842, 22502, 25684, 32105, 44947, 45004, 51368, 56255, 64210, 78757, 89894, 90008, 112510, 128420, 157514, 179788, 224735, 225020, 256840, 315028, 359576, 393785, 449470, 450040, 630056, 787570, 898940, 1575140, 1797880, 3150280, 72242671, 144485342, 288970684, 361213355, 505698697, 577941368, 722426710, 1011397394, 1444853420, 2022794788, 2528493485, 2889706840, 4045589576, 5056986970, 10113973940, 20227947880]

約数ペア:

[(1, 20227947880), (2, 10113973940), (4, 5056986970), (5, 4045589576), (7, 2889706840), (8, 2528493485), (10, 2022794788), (14, 1444853420), (20, 1011397394), (28, 722426710), (35, 577941368), (40, 505698697), (56, 361213355), (70, 288970684), (140, 144485342), (280, 72242671), (6421, 3150280), (11251, 1797880), (12842, 1575140), (22502, 898940), (25684, 787570), (32105, 630056), (44947, 450040), (45004, 449470), (51368, 393785), (56255, 359576), (64210, 315028), (78757, 256840), (89894, 225020), (90008, 224735), (112510, 179788), (128420, 157514)]