18491571488

素因数分解:

$2^5\times {\mathrm{13}}^1\times {\mathrm{239}}^1\times {\mathrm{185987}}^1$

素因数の和:186249

約数の個数: 48

約数和(自身を含む): 39369939840

約数和(自身を除く): 20878368352

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 52, 104, 208, 239, 416, 478, 956, 1912, 3107, 3824, 6214, 7648, 12428, 24856, 49712, 99424, 185987, 371974, 743948, 1487896, 2417831, 2975792, 4835662, 5951584, 9671324, 19342648, 38685296, 44450893, 77370592, 88901786, 177803572, 355607144, 577861609, 711214288, 1155723218, 1422428576, 2311446436, 4622892872, 9245785744, 18491571488]

約数ペア:

[(1, 18491571488), (2, 9245785744), (4, 4622892872), (8, 2311446436), (13, 1422428576), (16, 1155723218), (26, 711214288), (32, 577861609), (52, 355607144), (104, 177803572), (208, 88901786), (239, 77370592), (416, 44450893), (478, 38685296), (956, 19342648), (1912, 9671324), (3107, 5951584), (3824, 4835662), (6214, 2975792), (7648, 2417831), (12428, 1487896), (24856, 743948), (49712, 371974), (99424, 185987)]