19783648

素因数分解:

$2^5\times {\mathrm{17}}^1\times {\mathrm{41}}^1\times {\mathrm{887}}^1$

素因数の和:955

約数の個数: 48

約数和(自身を含む): 42293664

約数和(自身を除く): 22510016

約数列:

[1, 2, 4, 8, 16, 17, 32, 34, 41, 68, 82, 136, 164, 272, 328, 544, 656, 697, 887, 1312, 1394, 1774, 2788, 3548, 5576, 7096, 11152, 14192, 15079, 22304, 28384, 30158, 36367, 60316, 72734, 120632, 145468, 241264, 290936, 482528, 581872, 618239, 1163744, 1236478, 2472956, 4945912, 9891824, 19783648]

約数ペア:

[(1, 19783648), (2, 9891824), (4, 4945912), (8, 2472956), (16, 1236478), (17, 1163744), (32, 618239), (34, 581872), (41, 482528), (68, 290936), (82, 241264), (136, 145468), (164, 120632), (272, 72734), (328, 60316), (544, 36367), (656, 30158), (697, 28384), (887, 22304), (1312, 15079), (1394, 14192), (1774, 11152), (2788, 7096), (3548, 5576)]