20155827880

素因数分解:

$2^3\times 5^1\times {\mathrm{97}}^1\times {\mathrm{563}}^1\times {\mathrm{9227}}^1$

素因数の和:9898

約数の個数: 64

約数和(自身を含む): 45904501440

約数和(自身を除く): 25748673560

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 97, 194, 388, 485, 563, 776, 970, 1126, 1940, 2252, 2815, 3880, 4504, 5630, 9227, 11260, 18454, 22520, 36908, 46135, 54611, 73816, 92270, 109222, 184540, 218444, 273055, 369080, 436888, 546110, 895019, 1092220, 1790038, 2184440, 3580076, 4475095, 5194801, 7160152, 8950190, 10389602, 17900380, 20779204, 25974005, 35800760, 41558408, 51948010, 103896020, 207792040, 503895697, 1007791394, 2015582788, 2519478485, 4031165576, 5038956970, 10077913940, 20155827880]

約数ペア:

[(1, 20155827880), (2, 10077913940), (4, 5038956970), (5, 4031165576), (8, 2519478485), (10, 2015582788), (20, 1007791394), (40, 503895697), (97, 207792040), (194, 103896020), (388, 51948010), (485, 41558408), (563, 35800760), (776, 25974005), (970, 20779204), (1126, 17900380), (1940, 10389602), (2252, 8950190), (2815, 7160152), (3880, 5194801), (4504, 4475095), (5630, 3580076), (9227, 2184440), (11260, 1790038), (18454, 1092220), (22520, 895019), (36908, 546110), (46135, 436888), (54611, 369080), (73816, 273055), (92270, 218444), (109222, 184540)]