27981642

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{79}}^1\times {\mathrm{239}}^1$

素因数の和:355

約数の個数: 64

約数和(自身を含む): 64512000

約数和(自身を除く): 36530358

約数列:

[1, 2, 3, 6, 13, 19, 26, 38, 39, 57, 78, 79, 114, 158, 237, 239, 247, 474, 478, 494, 717, 741, 1027, 1434, 1482, 1501, 2054, 3002, 3081, 3107, 4503, 4541, 6162, 6214, 9006, 9082, 9321, 13623, 18642, 18881, 19513, 27246, 37762, 39026, 56643, 58539, 59033, 113286, 117078, 118066, 177099, 245453, 354198, 358739, 490906, 717478, 736359, 1076217, 1472718, 2152434, 4663607, 9327214, 13990821, 27981642]

約数ペア:

[(1, 27981642), (2, 13990821), (3, 9327214), (6, 4663607), (13, 2152434), (19, 1472718), (26, 1076217), (38, 736359), (39, 717478), (57, 490906), (78, 358739), (79, 354198), (114, 245453), (158, 177099), (237, 118066), (239, 117078), (247, 113286), (474, 59033), (478, 58539), (494, 56643), (717, 39026), (741, 37762), (1027, 27246), (1434, 19513), (1482, 18881), (1501, 18642), (2054, 13623), (3002, 9321), (3081, 9082), (3107, 9006), (4503, 6214), (4541, 6162)]