71178640

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{89}}^1\times {\mathrm{769}}^1$

素因数の和:884

約数の個数: 80

約数和(自身を含む): 180457200

約数和(自身を除く): 109278560

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, 769, 890, 1040, 1157, 1424, 1538, 1780, 2314, 3076, 3560, 3845, 4628, 5785, 6152, 7120, 7690, 9256, 9997, 11570, 12304, 15380, 18512, 19994, 23140, 30760, 39988, 46280, 49985, 61520, 68441, 79976, 92560, 99970, 136882, 159952, 199940, 273764, 342205, 399880, 547528, 684410, 799760, 889733, 1095056, 1368820, 1779466, 2737640, 3558932, 4448665, 5475280, 7117864, 8897330, 14235728, 17794660, 35589320, 71178640]

約数ペア:

[(1, 71178640), (2, 35589320), (4, 17794660), (5, 14235728), (8, 8897330), (10, 7117864), (13, 5475280), (16, 4448665), (20, 3558932), (26, 2737640), (40, 1779466), (52, 1368820), (65, 1095056), (80, 889733), (89, 799760), (104, 684410), (130, 547528), (178, 399880), (208, 342205), (260, 273764), (356, 199940), (445, 159952), (520, 136882), (712, 99970), (769, 92560), (890, 79976), (1040, 68441), (1157, 61520), (1424, 49985), (1538, 46280), (1780, 39988), (2314, 30760), (3076, 23140), (3560, 19994), (3845, 18512), (4628, 15380), (5785, 12304), (6152, 11570), (7120, 9997), (7690, 9256)]