20712052

素因数分解:

$2^2\times {\mathrm{17}}^2\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{41}}^1$

素因数の和:121

約数の個数: 72

約数和(自身を含む): 43323840

約数和(自身を除く): 22611788

約数列:

[1, 2, 4, 17, 19, 23, 34, 38, 41, 46, 68, 76, 82, 92, 164, 289, 323, 391, 437, 578, 646, 697, 779, 782, 874, 943, 1156, 1292, 1394, 1558, 1564, 1748, 1886, 2788, 3116, 3772, 5491, 6647, 7429, 10982, 11849, 13243, 13294, 14858, 16031, 17917, 21964, 23698, 26486, 26588, 29716, 32062, 35834, 47396, 52972, 64124, 71668, 126293, 225131, 252586, 272527, 304589, 450262, 505172, 545054, 609178, 900524, 1090108, 1218356, 5178013, 10356026, 20712052]

約数ペア:

[(1, 20712052), (2, 10356026), (4, 5178013), (17, 1218356), (19, 1090108), (23, 900524), (34, 609178), (38, 545054), (41, 505172), (46, 450262), (68, 304589), (76, 272527), (82, 252586), (92, 225131), (164, 126293), (289, 71668), (323, 64124), (391, 52972), (437, 47396), (578, 35834), (646, 32062), (697, 29716), (779, 26588), (782, 26486), (874, 23698), (943, 21964), (1156, 17917), (1292, 16031), (1394, 14858), (1558, 13294), (1564, 13243), (1748, 11849), (1886, 10982), (2788, 7429), (3116, 6647), (3772, 5491)]