71981780

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{251}}^1\times {\mathrm{1103}}^1$

素因数の和:1376

約数の個数: 48

約数和(自身を含む): 163586304

約数和(自身を除く): 91604524

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 251, 260, 502, 1004, 1103, 1255, 2206, 2510, 3263, 4412, 5020, 5515, 6526, 11030, 13052, 14339, 16315, 22060, 28678, 32630, 57356, 65260, 71695, 143390, 276853, 286780, 553706, 1107412, 1384265, 2768530, 3599089, 5537060, 7198178, 14396356, 17995445, 35990890, 71981780]

約数ペア:

[(1, 71981780), (2, 35990890), (4, 17995445), (5, 14396356), (10, 7198178), (13, 5537060), (20, 3599089), (26, 2768530), (52, 1384265), (65, 1107412), (130, 553706), (251, 286780), (260, 276853), (502, 143390), (1004, 71695), (1103, 65260), (1255, 57356), (2206, 32630), (2510, 28678), (3263, 22060), (4412, 16315), (5020, 14339), (5515, 13052), (6526, 11030)]