19127648

素因数分解:

$2^5\times {\mathrm{41}}^1\times {\mathrm{61}}^1\times {\mathrm{239}}^1$

素因数の和:351

約数の個数: 48

約数和(自身を含む): 39372480

約数和(自身を除く): 20244832

約数列:

[1, 2, 4, 8, 16, 32, 41, 61, 82, 122, 164, 239, 244, 328, 478, 488, 656, 956, 976, 1312, 1912, 1952, 2501, 3824, 5002, 7648, 9799, 10004, 14579, 19598, 20008, 29158, 39196, 40016, 58316, 78392, 80032, 116632, 156784, 233264, 313568, 466528, 597739, 1195478, 2390956, 4781912, 9563824, 19127648]

約数ペア:

[(1, 19127648), (2, 9563824), (4, 4781912), (8, 2390956), (16, 1195478), (32, 597739), (41, 466528), (61, 313568), (82, 233264), (122, 156784), (164, 116632), (239, 80032), (244, 78392), (328, 58316), (478, 40016), (488, 39196), (656, 29158), (956, 20008), (976, 19598), (1312, 14579), (1912, 10004), (1952, 9799), (2501, 7648), (3824, 5002)]