20442840

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{911}}^1$

素因数の和:953

約数の個数: 128

約数和(自身を含む): 70917120

約数和(自身を除く): 50474280

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 11, 12, 15, 17, 20, 22, 24, 30, 33, 34, 40, 44, 51, 55, 60, 66, 68, 85, 88, 102, 110, 120, 132, 136, 165, 170, 187, 204, 220, 255, 264, 330, 340, 374, 408, 440, 510, 561, 660, 680, 748, 911, 935, 1020, 1122, 1320, 1496, 1822, 1870, 2040, 2244, 2733, 2805, 3644, 3740, 4488, 4555, 5466, 5610, 7288, 7480, 9110, 10021, 10932, 11220, 13665, 15487, 18220, 20042, 21864, 22440, 27330, 30063, 30974, 36440, 40084, 46461, 50105, 54660, 60126, 61948, 77435, 80168, 92922, 100210, 109320, 120252, 123896, 150315, 154870, 170357, 185844, 200420, 232305, 240504, 300630, 309740, 340714, 371688, 400840, 464610, 511071, 601260, 619480, 681428, 851785, 929220, 1022142, 1202520, 1362856, 1703570, 1858440, 2044284, 2555355, 3407140, 4088568, 5110710, 6814280, 10221420, 20442840]

約数ペア:

[(1, 20442840), (2, 10221420), (3, 6814280), (4, 5110710), (5, 4088568), (6, 3407140), (8, 2555355), (10, 2044284), (11, 1858440), (12, 1703570), (15, 1362856), (17, 1202520), (20, 1022142), (22, 929220), (24, 851785), (30, 681428), (33, 619480), (34, 601260), (40, 511071), (44, 464610), (51, 400840), (55, 371688), (60, 340714), (66, 309740), (68, 300630), (85, 240504), (88, 232305), (102, 200420), (110, 185844), (120, 170357), (132, 154870), (136, 150315), (165, 123896), (170, 120252), (187, 109320), (204, 100210), (220, 92922), (255, 80168), (264, 77435), (330, 61948), (340, 60126), (374, 54660), (408, 50105), (440, 46461), (510, 40084), (561, 36440), (660, 30974), (680, 30063), (748, 27330), (911, 22440), (935, 21864), (1020, 20042), (1122, 18220), (1320, 15487), (1496, 13665), (1822, 11220), (1870, 10932), (2040, 10021), (2244, 9110), (2733, 7480), (2805, 7288), (3644, 5610), (3740, 5466), (4488, 4555)]