17820784

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{31}}^2\times {\mathrm{61}}^1$

素因数の和:150

約数の個数: 60

約数和(自身を含む): 38170920

約数和(自身を除く): 20350136

約数列:

[1, 2, 4, 8, 16, 19, 31, 38, 61, 62, 76, 122, 124, 152, 244, 248, 304, 488, 496, 589, 961, 976, 1159, 1178, 1891, 1922, 2318, 2356, 3782, 3844, 4636, 4712, 7564, 7688, 9272, 9424, 15128, 15376, 18259, 18544, 30256, 35929, 36518, 58621, 71858, 73036, 117242, 143716, 146072, 234484, 287432, 292144, 468968, 574864, 937936, 1113799, 2227598, 4455196, 8910392, 17820784]

約数ペア:

[(1, 17820784), (2, 8910392), (4, 4455196), (8, 2227598), (16, 1113799), (19, 937936), (31, 574864), (38, 468968), (61, 292144), (62, 287432), (76, 234484), (122, 146072), (124, 143716), (152, 117242), (244, 73036), (248, 71858), (304, 58621), (488, 36518), (496, 35929), (589, 30256), (961, 18544), (976, 18259), (1159, 15376), (1178, 15128), (1891, 9424), (1922, 9272), (2318, 7688), (2356, 7564), (3782, 4712), (3844, 4636)]