64642480

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{89}}^1\times {\mathrm{1297}}^1$

素因数の和:1406

約数の個数: 80

約数和(自身を含む): 173828160

約数和(自身を除く): 109185680

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 89, 112, 140, 178, 280, 356, 445, 560, 623, 712, 890, 1246, 1297, 1424, 1780, 2492, 2594, 3115, 3560, 4984, 5188, 6230, 6485, 7120, 9079, 9968, 10376, 12460, 12970, 18158, 20752, 24920, 25940, 36316, 45395, 49840, 51880, 72632, 90790, 103760, 115433, 145264, 181580, 230866, 363160, 461732, 577165, 726320, 808031, 923464, 1154330, 1616062, 1846928, 2308660, 3232124, 4040155, 4617320, 6464248, 8080310, 9234640, 12928496, 16160620, 32321240, 64642480]

約数ペア:

[(1, 64642480), (2, 32321240), (4, 16160620), (5, 12928496), (7, 9234640), (8, 8080310), (10, 6464248), (14, 4617320), (16, 4040155), (20, 3232124), (28, 2308660), (35, 1846928), (40, 1616062), (56, 1154330), (70, 923464), (80, 808031), (89, 726320), (112, 577165), (140, 461732), (178, 363160), (280, 230866), (356, 181580), (445, 145264), (560, 115433), (623, 103760), (712, 90790), (890, 72632), (1246, 51880), (1297, 49840), (1424, 45395), (1780, 36316), (2492, 25940), (2594, 24920), (3115, 20752), (3560, 18158), (4984, 12970), (5188, 12460), (6230, 10376), (6485, 9968), (7120, 9079)]