18684759940

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{61}}^1\times {\mathrm{198901}}^1$

素因数の和:198989

約数の個数: 96

約数和(自身を含む): 49722317568

約数和(自身を除く): 31037557628

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 28, 35, 44, 55, 61, 70, 77, 110, 122, 140, 154, 220, 244, 305, 308, 385, 427, 610, 671, 770, 854, 1220, 1342, 1540, 1708, 2135, 2684, 3355, 4270, 4697, 6710, 8540, 9394, 13420, 18788, 23485, 46970, 93940, 198901, 397802, 795604, 994505, 1392307, 1989010, 2187911, 2784614, 3978020, 4375822, 5569228, 6961535, 8751644, 10939555, 12132961, 13923070, 15315377, 21879110, 24265922, 27846140, 30630754, 43758220, 48531844, 60664805, 61261508, 76576885, 84930727, 121329610, 133462571, 153153770, 169861454, 242659220, 266925142, 306307540, 339722908, 424653635, 533850284, 667312855, 849307270, 934237997, 1334625710, 1698614540, 1868475994, 2669251420, 3736951988, 4671189985, 9342379970, 18684759940]

約数ペア:

[(1, 18684759940), (2, 9342379970), (4, 4671189985), (5, 3736951988), (7, 2669251420), (10, 1868475994), (11, 1698614540), (14, 1334625710), (20, 934237997), (22, 849307270), (28, 667312855), (35, 533850284), (44, 424653635), (55, 339722908), (61, 306307540), (70, 266925142), (77, 242659220), (110, 169861454), (122, 153153770), (140, 133462571), (154, 121329610), (220, 84930727), (244, 76576885), (305, 61261508), (308, 60664805), (385, 48531844), (427, 43758220), (610, 30630754), (671, 27846140), (770, 24265922), (854, 21879110), (1220, 15315377), (1342, 13923070), (1540, 12132961), (1708, 10939555), (2135, 8751644), (2684, 6961535), (3355, 5569228), (4270, 4375822), (4697, 3978020), (6710, 2784614), (8540, 2187911), (9394, 1989010), (13420, 1392307), (18788, 994505), (23485, 795604), (46970, 397802), (93940, 198901)]