638497764

素因数分解:

$2^2\times 3^2\times {\mathrm{17}}^1\times {\mathrm{59}}^1\times {\mathrm{17683}}^1$

素因数の和:17769

約数の個数: 72

約数和(自身を含む): 1737983520

約数和(自身を除く): 1099485756

約数列:

[1, 2, 3, 4, 6, 9, 12, 17, 18, 34, 36, 51, 59, 68, 102, 118, 153, 177, 204, 236, 306, 354, 531, 612, 708, 1003, 1062, 2006, 2124, 3009, 4012, 6018, 9027, 12036, 17683, 18054, 35366, 36108, 53049, 70732, 106098, 159147, 212196, 300611, 318294, 601222, 636588, 901833, 1043297, 1202444, 1803666, 2086594, 2705499, 3129891, 3607332, 4173188, 5410998, 6259782, 9389673, 10821996, 12519564, 17736049, 18779346, 35472098, 37558692, 53208147, 70944196, 106416294, 159624441, 212832588, 319248882, 638497764]

約数ペア:

[(1, 638497764), (2, 319248882), (3, 212832588), (4, 159624441), (6, 106416294), (9, 70944196), (12, 53208147), (17, 37558692), (18, 35472098), (34, 18779346), (36, 17736049), (51, 12519564), (59, 10821996), (68, 9389673), (102, 6259782), (118, 5410998), (153, 4173188), (177, 3607332), (204, 3129891), (236, 2705499), (306, 2086594), (354, 1803666), (531, 1202444), (612, 1043297), (708, 901833), (1003, 636588), (1062, 601222), (2006, 318294), (2124, 300611), (3009, 212196), (4012, 159147), (6018, 106098), (9027, 70732), (12036, 53049), (17683, 36108), (18054, 35366)]