989968395

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{523}}^1\times {\mathrm{571}}^1$

素因数の和:1132

約数の個数: 64

約数和(自身を含む): 1812754944

約数和(自身を除く): 822786549

約数列:

[1, 3, 5, 13, 15, 17, 39, 51, 65, 85, 195, 221, 255, 523, 571, 663, 1105, 1569, 1713, 2615, 2855, 3315, 6799, 7423, 7845, 8565, 8891, 9707, 20397, 22269, 26673, 29121, 33995, 37115, 44455, 48535, 101985, 111345, 115583, 126191, 133365, 145605, 298633, 346749, 378573, 577915, 630955, 895899, 1493165, 1733745, 1892865, 3882229, 4479495, 5076761, 11646687, 15230283, 19411145, 25383805, 58233435, 65997893, 76151415, 197993679, 329989465, 989968395]

約数ペア:

[(1, 989968395), (3, 329989465), (5, 197993679), (13, 76151415), (15, 65997893), (17, 58233435), (39, 25383805), (51, 19411145), (65, 15230283), (85, 11646687), (195, 5076761), (221, 4479495), (255, 3882229), (523, 1892865), (571, 1733745), (663, 1493165), (1105, 895899), (1569, 630955), (1713, 577915), (2615, 378573), (2855, 346749), (3315, 298633), (6799, 145605), (7423, 133365), (7845, 126191), (8565, 115583), (8891, 111345), (9707, 101985), (20397, 48535), (22269, 44455), (26673, 37115), (29121, 33995)]