643374656

素因数分解:

$2^6\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{31123}}^1$

素因数の和:31171

約数の個数: 56

約数和(自身を含む): 1422989280

約数和(自身を除く): 779614624

約数列:

[1, 2, 4, 8, 16, 17, 19, 32, 34, 38, 64, 68, 76, 136, 152, 272, 304, 323, 544, 608, 646, 1088, 1216, 1292, 2584, 5168, 10336, 20672, 31123, 62246, 124492, 248984, 497968, 529091, 591337, 995936, 1058182, 1182674, 1991872, 2116364, 2365348, 4232728, 4730696, 8465456, 9461392, 10052729, 16930912, 18922784, 20105458, 33861824, 37845568, 40210916, 80421832, 160843664, 321687328, 643374656]

約数ペア:

[(1, 643374656), (2, 321687328), (4, 160843664), (8, 80421832), (16, 40210916), (17, 37845568), (19, 33861824), (32, 20105458), (34, 18922784), (38, 16930912), (64, 10052729), (68, 9461392), (76, 8465456), (136, 4730696), (152, 4232728), (272, 2365348), (304, 2116364), (323, 1991872), (544, 1182674), (608, 1058182), (646, 995936), (1088, 591337), (1216, 529091), (1292, 497968), (2584, 248984), (5168, 124492), (10336, 62246), (20672, 31123)]