18550840

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{317}}^1$

素因数の和:365

約数の個数: 128

約数和(自身を含む): 54950400

約数和(自身を除く): 36399560

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 14, 19, 20, 22, 28, 35, 38, 40, 44, 55, 56, 70, 76, 77, 88, 95, 110, 133, 140, 152, 154, 190, 209, 220, 266, 280, 308, 317, 380, 385, 418, 440, 532, 616, 634, 665, 760, 770, 836, 1045, 1064, 1268, 1330, 1463, 1540, 1585, 1672, 2090, 2219, 2536, 2660, 2926, 3080, 3170, 3487, 4180, 4438, 5320, 5852, 6023, 6340, 6974, 7315, 8360, 8876, 11095, 11704, 12046, 12680, 13948, 14630, 17435, 17752, 22190, 24092, 24409, 27896, 29260, 30115, 34870, 42161, 44380, 48184, 48818, 58520, 60230, 66253, 69740, 84322, 88760, 97636, 120460, 122045, 132506, 139480, 168644, 195272, 210805, 240920, 244090, 265012, 331265, 337288, 421610, 463771, 488180, 530024, 662530, 843220, 927542, 976360, 1325060, 1686440, 1855084, 2318855, 2650120, 3710168, 4637710, 9275420, 18550840]

約数ペア:

[(1, 18550840), (2, 9275420), (4, 4637710), (5, 3710168), (7, 2650120), (8, 2318855), (10, 1855084), (11, 1686440), (14, 1325060), (19, 976360), (20, 927542), (22, 843220), (28, 662530), (35, 530024), (38, 488180), (40, 463771), (44, 421610), (55, 337288), (56, 331265), (70, 265012), (76, 244090), (77, 240920), (88, 210805), (95, 195272), (110, 168644), (133, 139480), (140, 132506), (152, 122045), (154, 120460), (190, 97636), (209, 88760), (220, 84322), (266, 69740), (280, 66253), (308, 60230), (317, 58520), (380, 48818), (385, 48184), (418, 44380), (440, 42161), (532, 34870), (616, 30115), (634, 29260), (665, 27896), (760, 24409), (770, 24092), (836, 22190), (1045, 17752), (1064, 17435), (1268, 14630), (1330, 13948), (1463, 12680), (1540, 12046), (1585, 11704), (1672, 11095), (2090, 8876), (2219, 8360), (2536, 7315), (2660, 6974), (2926, 6340), (3080, 6023), (3170, 5852), (3487, 5320), (4180, 4438)]