20872488

素因数分解:

$2^3\times 3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{503}}^1$

素因数の和:551

約数の個数: 128

約数和(自身を含む): 67737600

約数和(自身を除く): 46865112

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 13, 14, 19, 21, 24, 26, 28, 38, 39, 42, 52, 56, 57, 76, 78, 84, 91, 104, 114, 133, 152, 156, 168, 182, 228, 247, 266, 273, 312, 364, 399, 456, 494, 503, 532, 546, 728, 741, 798, 988, 1006, 1064, 1092, 1482, 1509, 1596, 1729, 1976, 2012, 2184, 2964, 3018, 3192, 3458, 3521, 4024, 5187, 5928, 6036, 6539, 6916, 7042, 9557, 10374, 10563, 12072, 13078, 13832, 14084, 19114, 19617, 20748, 21126, 26156, 28168, 28671, 38228, 39234, 41496, 42252, 45773, 52312, 57342, 66899, 76456, 78468, 84504, 91546, 114684, 124241, 133798, 137319, 156936, 183092, 200697, 229368, 248482, 267596, 274638, 366184, 372723, 401394, 496964, 535192, 549276, 745446, 802788, 869687, 993928, 1098552, 1490892, 1605576, 1739374, 2609061, 2981784, 3478748, 5218122, 6957496, 10436244, 20872488]

約数ペア:

[(1, 20872488), (2, 10436244), (3, 6957496), (4, 5218122), (6, 3478748), (7, 2981784), (8, 2609061), (12, 1739374), (13, 1605576), (14, 1490892), (19, 1098552), (21, 993928), (24, 869687), (26, 802788), (28, 745446), (38, 549276), (39, 535192), (42, 496964), (52, 401394), (56, 372723), (57, 366184), (76, 274638), (78, 267596), (84, 248482), (91, 229368), (104, 200697), (114, 183092), (133, 156936), (152, 137319), (156, 133798), (168, 124241), (182, 114684), (228, 91546), (247, 84504), (266, 78468), (273, 76456), (312, 66899), (364, 57342), (399, 52312), (456, 45773), (494, 42252), (503, 41496), (532, 39234), (546, 38228), (728, 28671), (741, 28168), (798, 26156), (988, 21126), (1006, 20748), (1064, 19617), (1092, 19114), (1482, 14084), (1509, 13832), (1596, 13078), (1729, 12072), (1976, 10563), (2012, 10374), (2184, 9557), (2964, 7042), (3018, 6916), (3192, 6539), (3458, 6036), (3521, 5928), (4024, 5187)]