19049080

素因数分解:

$2^3\times 5^1\times {\mathrm{37}}^1\times {\mathrm{61}}^1\times {\mathrm{211}}^1$

素因数の和:320

約数の個数: 64

約数和(自身を含む): 44952480

約数和(自身を除く): 25903400

約数列:

[1, 2, 4, 5, 8, 10, 20, 37, 40, 61, 74, 122, 148, 185, 211, 244, 296, 305, 370, 422, 488, 610, 740, 844, 1055, 1220, 1480, 1688, 2110, 2257, 2440, 4220, 4514, 7807, 8440, 9028, 11285, 12871, 15614, 18056, 22570, 25742, 31228, 39035, 45140, 51484, 62456, 64355, 78070, 90280, 102968, 128710, 156140, 257420, 312280, 476227, 514840, 952454, 1904908, 2381135, 3809816, 4762270, 9524540, 19049080]

約数ペア:

[(1, 19049080), (2, 9524540), (4, 4762270), (5, 3809816), (8, 2381135), (10, 1904908), (20, 952454), (37, 514840), (40, 476227), (61, 312280), (74, 257420), (122, 156140), (148, 128710), (185, 102968), (211, 90280), (244, 78070), (296, 64355), (305, 62456), (370, 51484), (422, 45140), (488, 39035), (610, 31228), (740, 25742), (844, 22570), (1055, 18056), (1220, 15614), (1480, 12871), (1688, 11285), (2110, 9028), (2257, 8440), (2440, 7807), (4220, 4514)]