18554848

素因数分解:

$2^5\times {\mathrm{13}}^2\times {\mathrm{47}}^1\times {\mathrm{73}}^1$

素因数の和:156

約数の個数: 72

約数和(自身を含む): 40951008

約数和(自身を除く): 22396160

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 47, 52, 73, 94, 104, 146, 169, 188, 208, 292, 338, 376, 416, 584, 611, 676, 752, 949, 1168, 1222, 1352, 1504, 1898, 2336, 2444, 2704, 3431, 3796, 4888, 5408, 6862, 7592, 7943, 9776, 12337, 13724, 15184, 15886, 19552, 24674, 27448, 30368, 31772, 44603, 49348, 54896, 63544, 89206, 98696, 109792, 127088, 178412, 197392, 254176, 356824, 394784, 579839, 713648, 1159678, 1427296, 2319356, 4638712, 9277424, 18554848]

約数ペア:

[(1, 18554848), (2, 9277424), (4, 4638712), (8, 2319356), (13, 1427296), (16, 1159678), (26, 713648), (32, 579839), (47, 394784), (52, 356824), (73, 254176), (94, 197392), (104, 178412), (146, 127088), (169, 109792), (188, 98696), (208, 89206), (292, 63544), (338, 54896), (376, 49348), (416, 44603), (584, 31772), (611, 30368), (676, 27448), (752, 24674), (949, 19552), (1168, 15886), (1222, 15184), (1352, 13724), (1504, 12337), (1898, 9776), (2336, 7943), (2444, 7592), (2704, 6862), (3431, 5408), (3796, 4888)]