20164579300

素因数分解:

$2^2\times 5^2\times {\mathrm{31}}^1\times {\mathrm{101}}^1\times {\mathrm{64403}}^1$

素因数の和:64549

約数の個数: 72

約数和(自身を含む): 45616580352

約数和(自身を除く): 25452001052

約数列:

[1, 2, 4, 5, 10, 20, 25, 31, 50, 62, 100, 101, 124, 155, 202, 310, 404, 505, 620, 775, 1010, 1550, 2020, 2525, 3100, 3131, 5050, 6262, 10100, 12524, 15655, 31310, 62620, 64403, 78275, 128806, 156550, 257612, 313100, 322015, 644030, 1288060, 1610075, 1996493, 3220150, 3992986, 6440300, 6504703, 7985972, 9982465, 13009406, 19964930, 26018812, 32523515, 39929860, 49912325, 65047030, 99824650, 130094060, 162617575, 199649300, 201645793, 325235150, 403291586, 650470300, 806583172, 1008228965, 2016457930, 4032915860, 5041144825, 10082289650, 20164579300]

約数ペア:

[(1, 20164579300), (2, 10082289650), (4, 5041144825), (5, 4032915860), (10, 2016457930), (20, 1008228965), (25, 806583172), (31, 650470300), (50, 403291586), (62, 325235150), (100, 201645793), (101, 199649300), (124, 162617575), (155, 130094060), (202, 99824650), (310, 65047030), (404, 49912325), (505, 39929860), (620, 32523515), (775, 26018812), (1010, 19964930), (1550, 13009406), (2020, 9982465), (2525, 7985972), (3100, 6504703), (3131, 6440300), (5050, 3992986), (6262, 3220150), (10100, 1996493), (12524, 1610075), (15655, 1288060), (31310, 644030), (62620, 322015), (64403, 313100), (78275, 257612), (128806, 156550)]