53485720

素因数分解:

$2^3\times 5^1\times {\mathrm{37}}^1\times {\mathrm{71}}^1\times {\mathrm{509}}^1$

素因数の和:628

約数の個数: 64

約数和(自身を含む): 125582400

約数和(自身を除く): 72096680

約数列:

[1, 2, 4, 5, 8, 10, 20, 37, 40, 71, 74, 142, 148, 185, 284, 296, 355, 370, 509, 568, 710, 740, 1018, 1420, 1480, 2036, 2545, 2627, 2840, 4072, 5090, 5254, 10180, 10508, 13135, 18833, 20360, 21016, 26270, 36139, 37666, 52540, 72278, 75332, 94165, 105080, 144556, 150664, 180695, 188330, 289112, 361390, 376660, 722780, 753320, 1337143, 1445560, 2674286, 5348572, 6685715, 10697144, 13371430, 26742860, 53485720]

約数ペア:

[(1, 53485720), (2, 26742860), (4, 13371430), (5, 10697144), (8, 6685715), (10, 5348572), (20, 2674286), (37, 1445560), (40, 1337143), (71, 753320), (74, 722780), (142, 376660), (148, 361390), (185, 289112), (284, 188330), (296, 180695), (355, 150664), (370, 144556), (509, 105080), (568, 94165), (710, 75332), (740, 72278), (1018, 52540), (1420, 37666), (1480, 36139), (2036, 26270), (2545, 21016), (2627, 20360), (2840, 18833), (4072, 13135), (5090, 10508), (5254, 10180)]