201722890

素因数分解:

$2^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{43}}^1\times {\mathrm{409}}^1$

素因数の和:527

約数の個数: 64

約数和(自身を含む): 394859520

約数和(自身を除く): 193136630

約数列:

[1, 2, 5, 10, 31, 37, 43, 62, 74, 86, 155, 185, 215, 310, 370, 409, 430, 818, 1147, 1333, 1591, 2045, 2294, 2666, 3182, 4090, 5735, 6665, 7955, 11470, 12679, 13330, 15133, 15910, 17587, 25358, 30266, 35174, 49321, 63395, 75665, 87935, 98642, 126790, 151330, 175870, 246605, 469123, 493210, 545197, 650719, 938246, 1090394, 1301438, 2345615, 2725985, 3253595, 4691230, 5451970, 6507190, 20172289, 40344578, 100861445, 201722890]

約数ペア:

[(1, 201722890), (2, 100861445), (5, 40344578), (10, 20172289), (31, 6507190), (37, 5451970), (43, 4691230), (62, 3253595), (74, 2725985), (86, 2345615), (155, 1301438), (185, 1090394), (215, 938246), (310, 650719), (370, 545197), (409, 493210), (430, 469123), (818, 246605), (1147, 175870), (1333, 151330), (1591, 126790), (2045, 98642), (2294, 87935), (2666, 75665), (3182, 63395), (4090, 49321), (5735, 35174), (6665, 30266), (7955, 25358), (11470, 17587), (12679, 15910), (13330, 15133)]