81290820

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{89}}^1\times {\mathrm{1171}}^1$

素因数の和:1285

約数の個数: 96

約数和(自身を含む): 248088960

約数和(自身を除く): 166798140

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 26, 30, 39, 52, 60, 65, 78, 89, 130, 156, 178, 195, 260, 267, 356, 390, 445, 534, 780, 890, 1068, 1157, 1171, 1335, 1780, 2314, 2342, 2670, 3471, 3513, 4628, 4684, 5340, 5785, 5855, 6942, 7026, 11570, 11710, 13884, 14052, 15223, 17355, 17565, 23140, 23420, 30446, 34710, 35130, 45669, 60892, 69420, 70260, 76115, 91338, 104219, 152230, 182676, 208438, 228345, 304460, 312657, 416876, 456690, 521095, 625314, 913380, 1042190, 1250628, 1354847, 1563285, 2084380, 2709694, 3126570, 4064541, 5419388, 6253140, 6774235, 8129082, 13548470, 16258164, 20322705, 27096940, 40645410, 81290820]

約数ペア:

[(1, 81290820), (2, 40645410), (3, 27096940), (4, 20322705), (5, 16258164), (6, 13548470), (10, 8129082), (12, 6774235), (13, 6253140), (15, 5419388), (20, 4064541), (26, 3126570), (30, 2709694), (39, 2084380), (52, 1563285), (60, 1354847), (65, 1250628), (78, 1042190), (89, 913380), (130, 625314), (156, 521095), (178, 456690), (195, 416876), (260, 312657), (267, 304460), (356, 228345), (390, 208438), (445, 182676), (534, 152230), (780, 104219), (890, 91338), (1068, 76115), (1157, 70260), (1171, 69420), (1335, 60892), (1780, 45669), (2314, 35130), (2342, 34710), (2670, 30446), (3471, 23420), (3513, 23140), (4628, 17565), (4684, 17355), (5340, 15223), (5785, 14052), (5855, 13884), (6942, 11710), (7026, 11570)]