2100000004

素因数分解:

$2^2\times {\mathrm{17}}^2\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{4157}}^1$

素因数の和:4237

約数の個数: 72

約数和(自身を含む): 4289060160

約数和(自身を除く): 2189060156

約数列:

[1, 2, 4, 17, 19, 23, 34, 38, 46, 68, 76, 92, 289, 323, 391, 437, 578, 646, 782, 874, 1156, 1292, 1564, 1748, 4157, 5491, 6647, 7429, 8314, 10982, 13294, 14858, 16628, 21964, 26588, 29716, 70669, 78983, 95611, 126293, 141338, 157966, 191222, 252586, 282676, 315932, 382444, 505172, 1201373, 1342711, 1625387, 1816609, 2402746, 2685422, 3250774, 3633218, 4805492, 5370844, 6501548, 7266436, 22826087, 27631579, 30882353, 45652174, 55263158, 61764706, 91304348, 110526316, 123529412, 525000001, 1050000002, 2100000004]

約数ペア:

[(1, 2100000004), (2, 1050000002), (4, 525000001), (17, 123529412), (19, 110526316), (23, 91304348), (34, 61764706), (38, 55263158), (46, 45652174), (68, 30882353), (76, 27631579), (92, 22826087), (289, 7266436), (323, 6501548), (391, 5370844), (437, 4805492), (578, 3633218), (646, 3250774), (782, 2685422), (874, 2402746), (1156, 1816609), (1292, 1625387), (1564, 1342711), (1748, 1201373), (4157, 505172), (5491, 382444), (6647, 315932), (7429, 282676), (8314, 252586), (10982, 191222), (13294, 157966), (14858, 141338), (16628, 126293), (21964, 95611), (26588, 78983), (29716, 70669)]