255256540

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{83}}^1\times {\mathrm{1997}}^1$

素因数の和:2107

約数の個数: 96

約数和(自身を含む): 676698624

約数和(自身を除く): 421442084

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 28, 35, 44, 55, 70, 77, 83, 110, 140, 154, 166, 220, 308, 332, 385, 415, 581, 770, 830, 913, 1162, 1540, 1660, 1826, 1997, 2324, 2905, 3652, 3994, 4565, 5810, 6391, 7988, 9130, 9985, 11620, 12782, 13979, 18260, 19970, 21967, 25564, 27958, 31955, 39940, 43934, 55916, 63910, 69895, 87868, 109835, 127820, 139790, 153769, 165751, 219670, 279580, 307538, 331502, 439340, 615076, 663004, 768845, 828755, 1160257, 1537690, 1657510, 1823261, 2320514, 3075380, 3315020, 3646522, 4641028, 5801285, 7293044, 9116305, 11602570, 12762827, 18232610, 23205140, 25525654, 36465220, 51051308, 63814135, 127628270, 255256540]

約数ペア:

[(1, 255256540), (2, 127628270), (4, 63814135), (5, 51051308), (7, 36465220), (10, 25525654), (11, 23205140), (14, 18232610), (20, 12762827), (22, 11602570), (28, 9116305), (35, 7293044), (44, 5801285), (55, 4641028), (70, 3646522), (77, 3315020), (83, 3075380), (110, 2320514), (140, 1823261), (154, 1657510), (166, 1537690), (220, 1160257), (308, 828755), (332, 768845), (385, 663004), (415, 615076), (581, 439340), (770, 331502), (830, 307538), (913, 279580), (1162, 219670), (1540, 165751), (1660, 153769), (1826, 139790), (1997, 127820), (2324, 109835), (2905, 87868), (3652, 69895), (3994, 63910), (4565, 55916), (5810, 43934), (6391, 39940), (7988, 31955), (9130, 27958), (9985, 25564), (11620, 21967), (12782, 19970), (13979, 18260)]