64452940

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^2\times {\mathrm{79}}^1\times {\mathrm{113}}^1$

素因数の和:239

約数の個数: 72

約数和(自身を含む): 145938240

約数和(自身を除く): 81485300

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 79, 95, 113, 158, 190, 226, 316, 361, 380, 395, 452, 565, 722, 790, 1130, 1444, 1501, 1580, 1805, 2147, 2260, 3002, 3610, 4294, 6004, 7220, 7505, 8588, 8927, 10735, 15010, 17854, 21470, 28519, 30020, 35708, 40793, 42940, 44635, 57038, 81586, 89270, 114076, 142595, 163172, 169613, 178540, 203965, 285190, 339226, 407930, 570380, 678452, 815860, 848065, 1696130, 3222647, 3392260, 6445294, 12890588, 16113235, 32226470, 64452940]

約数ペア:

[(1, 64452940), (2, 32226470), (4, 16113235), (5, 12890588), (10, 6445294), (19, 3392260), (20, 3222647), (38, 1696130), (76, 848065), (79, 815860), (95, 678452), (113, 570380), (158, 407930), (190, 339226), (226, 285190), (316, 203965), (361, 178540), (380, 169613), (395, 163172), (452, 142595), (565, 114076), (722, 89270), (790, 81586), (1130, 57038), (1444, 44635), (1501, 42940), (1580, 40793), (1805, 35708), (2147, 30020), (2260, 28519), (3002, 21470), (3610, 17854), (4294, 15010), (6004, 10735), (7220, 8927), (7505, 8588)]