258788740

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{271}}^1\times {\mathrm{359}}^1$

素因数の和:665

約数の個数: 96

約数和(自身を含む): 658022400

約数和(自身を除く): 399233660

約数列:

[1, 2, 4, 5, 7, 10, 14, 19, 20, 28, 35, 38, 70, 76, 95, 133, 140, 190, 266, 271, 359, 380, 532, 542, 665, 718, 1084, 1330, 1355, 1436, 1795, 1897, 2513, 2660, 2710, 3590, 3794, 5026, 5149, 5420, 6821, 7180, 7588, 9485, 10052, 10298, 12565, 13642, 18970, 20596, 25130, 25745, 27284, 34105, 36043, 37940, 47747, 50260, 51490, 68210, 72086, 95494, 97289, 102980, 136420, 144172, 180215, 190988, 194578, 238735, 360430, 389156, 477470, 486445, 681023, 720860, 954940, 972890, 1362046, 1848491, 1945780, 2724092, 3405115, 3696982, 6810230, 7393964, 9242455, 12939437, 13620460, 18484910, 25878874, 36969820, 51757748, 64697185, 129394370, 258788740]

約数ペア:

[(1, 258788740), (2, 129394370), (4, 64697185), (5, 51757748), (7, 36969820), (10, 25878874), (14, 18484910), (19, 13620460), (20, 12939437), (28, 9242455), (35, 7393964), (38, 6810230), (70, 3696982), (76, 3405115), (95, 2724092), (133, 1945780), (140, 1848491), (190, 1362046), (266, 972890), (271, 954940), (359, 720860), (380, 681023), (532, 486445), (542, 477470), (665, 389156), (718, 360430), (1084, 238735), (1330, 194578), (1355, 190988), (1436, 180215), (1795, 144172), (1897, 136420), (2513, 102980), (2660, 97289), (2710, 95494), (3590, 72086), (3794, 68210), (5026, 51490), (5149, 50260), (5420, 47747), (6821, 37940), (7180, 36043), (7588, 34105), (9485, 27284), (10052, 25745), (10298, 25130), (12565, 20596), (13642, 18970)]