19995442040

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{1660751}}^1$

素因数の和:1660812

約数の個数: 64

約数和(自身を含む): 52612623360

約数和(自身を除く): 32617181320

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 43, 56, 70, 86, 140, 172, 215, 280, 301, 344, 430, 602, 860, 1204, 1505, 1720, 2408, 3010, 6020, 12040, 1660751, 3321502, 6643004, 8303755, 11625257, 13286008, 16607510, 23250514, 33215020, 46501028, 58126285, 66430040, 71412293, 93002056, 116252570, 142824586, 232505140, 285649172, 357061465, 465010280, 499886051, 571298344, 714122930, 999772102, 1428245860, 1999544204, 2499430255, 2856491720, 3999088408, 4998860510, 9997721020, 19995442040]

約数ペア:

[(1, 19995442040), (2, 9997721020), (4, 4998860510), (5, 3999088408), (7, 2856491720), (8, 2499430255), (10, 1999544204), (14, 1428245860), (20, 999772102), (28, 714122930), (35, 571298344), (40, 499886051), (43, 465010280), (56, 357061465), (70, 285649172), (86, 232505140), (140, 142824586), (172, 116252570), (215, 93002056), (280, 71412293), (301, 66430040), (344, 58126285), (430, 46501028), (602, 33215020), (860, 23250514), (1204, 16607510), (1505, 13286008), (1720, 11625257), (2408, 8303755), (3010, 6643004), (6020, 3321502), (12040, 1660751)]