64338950

素因数分解:

$2^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{31}}^2\times {\mathrm{103}}^1$

素因数の和:190

約数の個数: 72

約数和(自身を含む): 134460144

約数和(自身を除く): 70121194

約数列:

[1, 2, 5, 10, 13, 25, 26, 31, 50, 62, 65, 103, 130, 155, 206, 310, 325, 403, 515, 650, 775, 806, 961, 1030, 1339, 1550, 1922, 2015, 2575, 2678, 3193, 4030, 4805, 5150, 6386, 6695, 9610, 10075, 12493, 13390, 15965, 20150, 24025, 24986, 31930, 33475, 41509, 48050, 62465, 66950, 79825, 83018, 98983, 124930, 159650, 197966, 207545, 312325, 415090, 494915, 624650, 989830, 1037725, 1286779, 2075450, 2474575, 2573558, 4949150, 6433895, 12867790, 32169475, 64338950]

約数ペア:

[(1, 64338950), (2, 32169475), (5, 12867790), (10, 6433895), (13, 4949150), (25, 2573558), (26, 2474575), (31, 2075450), (50, 1286779), (62, 1037725), (65, 989830), (103, 624650), (130, 494915), (155, 415090), (206, 312325), (310, 207545), (325, 197966), (403, 159650), (515, 124930), (650, 98983), (775, 83018), (806, 79825), (961, 66950), (1030, 62465), (1339, 48050), (1550, 41509), (1922, 33475), (2015, 31930), (2575, 24986), (2678, 24025), (3193, 20150), (4030, 15965), (4805, 13390), (5150, 12493), (6386, 10075), (6695, 9610)]