19952816

素因数分解:

$2^4\times {\mathrm{13}}^2\times {\mathrm{47}}^1\times {\mathrm{157}}^1$

素因数の和:238

約数の個数: 60

約数和(自身を含む): 43024032

約数和(自身を除く): 23071216

約数列:

[1, 2, 4, 8, 13, 16, 26, 47, 52, 94, 104, 157, 169, 188, 208, 314, 338, 376, 611, 628, 676, 752, 1222, 1256, 1352, 2041, 2444, 2512, 2704, 4082, 4888, 7379, 7943, 8164, 9776, 14758, 15886, 16328, 26533, 29516, 31772, 32656, 53066, 59032, 63544, 95927, 106132, 118064, 127088, 191854, 212264, 383708, 424528, 767416, 1247051, 1534832, 2494102, 4988204, 9976408, 19952816]

約数ペア:

[(1, 19952816), (2, 9976408), (4, 4988204), (8, 2494102), (13, 1534832), (16, 1247051), (26, 767416), (47, 424528), (52, 383708), (94, 212264), (104, 191854), (157, 127088), (169, 118064), (188, 106132), (208, 95927), (314, 63544), (338, 59032), (376, 53066), (611, 32656), (628, 31772), (676, 29516), (752, 26533), (1222, 16328), (1256, 15886), (1352, 14758), (2041, 9776), (2444, 8164), (2512, 7943), (2704, 7379), (4082, 4888)]