64005560

素因数分解:

$2^3\times 5^1\times {\mathrm{37}}^1\times {\mathrm{59}}^1\times {\mathrm{733}}^1$

素因数の和:840

約数の個数: 64

約数和(自身を含む): 150616800

約数和(自身を除く): 86611240

約数列:

[1, 2, 4, 5, 8, 10, 20, 37, 40, 59, 74, 118, 148, 185, 236, 295, 296, 370, 472, 590, 733, 740, 1180, 1466, 1480, 2183, 2360, 2932, 3665, 4366, 5864, 7330, 8732, 10915, 14660, 17464, 21830, 27121, 29320, 43247, 43660, 54242, 86494, 87320, 108484, 135605, 172988, 216235, 216968, 271210, 345976, 432470, 542420, 864940, 1084840, 1600139, 1729880, 3200278, 6400556, 8000695, 12801112, 16001390, 32002780, 64005560]

約数ペア:

[(1, 64005560), (2, 32002780), (4, 16001390), (5, 12801112), (8, 8000695), (10, 6400556), (20, 3200278), (37, 1729880), (40, 1600139), (59, 1084840), (74, 864940), (118, 542420), (148, 432470), (185, 345976), (236, 271210), (295, 216968), (296, 216235), (370, 172988), (472, 135605), (590, 108484), (733, 87320), (740, 86494), (1180, 54242), (1466, 43660), (1480, 43247), (2183, 29320), (2360, 27121), (2932, 21830), (3665, 17464), (4366, 14660), (5864, 10915), (7330, 8732)]