66550640

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{89}}^1\times {\mathrm{719}}^1$

素因数の和:834

約数の個数: 80

約数和(自身を含む): 168739200

約数和(自身を除く): 102188560

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 89, 104, 130, 178, 208, 260, 356, 445, 520, 712, 719, 890, 1040, 1157, 1424, 1438, 1780, 2314, 2876, 3560, 3595, 4628, 5752, 5785, 7120, 7190, 9256, 9347, 11504, 11570, 14380, 18512, 18694, 23140, 28760, 37388, 46280, 46735, 57520, 63991, 74776, 92560, 93470, 127982, 149552, 186940, 255964, 319955, 373880, 511928, 639910, 747760, 831883, 1023856, 1279820, 1663766, 2559640, 3327532, 4159415, 5119280, 6655064, 8318830, 13310128, 16637660, 33275320, 66550640]

約数ペア:

[(1, 66550640), (2, 33275320), (4, 16637660), (5, 13310128), (8, 8318830), (10, 6655064), (13, 5119280), (16, 4159415), (20, 3327532), (26, 2559640), (40, 1663766), (52, 1279820), (65, 1023856), (80, 831883), (89, 747760), (104, 639910), (130, 511928), (178, 373880), (208, 319955), (260, 255964), (356, 186940), (445, 149552), (520, 127982), (712, 93470), (719, 92560), (890, 74776), (1040, 63991), (1157, 57520), (1424, 46735), (1438, 46280), (1780, 37388), (2314, 28760), (2876, 23140), (3560, 18694), (3595, 18512), (4628, 14380), (5752, 11570), (5785, 11504), (7120, 9347), (7190, 9256)]