1991004050

素因数分解:

$2^1\times 5^2\times 7^1\times {\mathrm{283}}^1\times {\mathrm{20101}}^1$

素因数の和:20403

約数の個数: 48

約数和(自身を含む): 4247472192

約数和(自身を除く): 2256468142

約数列:

[1, 2, 5, 7, 10, 14, 25, 35, 50, 70, 175, 283, 350, 566, 1415, 1981, 2830, 3962, 7075, 9905, 14150, 19810, 20101, 40202, 49525, 99050, 100505, 140707, 201010, 281414, 502525, 703535, 1005050, 1407070, 3517675, 5688583, 7035350, 11377166, 28442915, 39820081, 56885830, 79640162, 142214575, 199100405, 284429150, 398200810, 995502025, 1991004050]

約数ペア:

[(1, 1991004050), (2, 995502025), (5, 398200810), (7, 284429150), (10, 199100405), (14, 142214575), (25, 79640162), (35, 56885830), (50, 39820081), (70, 28442915), (175, 11377166), (283, 7035350), (350, 5688583), (566, 3517675), (1415, 1407070), (1981, 1005050), (2830, 703535), (3962, 502525), (7075, 281414), (9905, 201010), (14150, 140707), (19810, 100505), (20101, 99050), (40202, 49525)]