80902780

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{89}}^1\times {\mathrm{151}}^1$

素因数の和:299

約数の個数: 96

約数和(自身を含む): 202245120

約数和(自身を除く): 121342340

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 43, 70, 86, 89, 140, 151, 172, 178, 215, 301, 302, 356, 430, 445, 602, 604, 623, 755, 860, 890, 1057, 1204, 1246, 1505, 1510, 1780, 2114, 2492, 3010, 3020, 3115, 3827, 4228, 5285, 6020, 6230, 6493, 7654, 10570, 12460, 12986, 13439, 15308, 19135, 21140, 25972, 26789, 26878, 32465, 38270, 45451, 53578, 53756, 64930, 67195, 76540, 90902, 94073, 107156, 129860, 133945, 134390, 181804, 188146, 227255, 267890, 268780, 376292, 454510, 470365, 535780, 577877, 909020, 940730, 1155754, 1881460, 2311508, 2889385, 4045139, 5778770, 8090278, 11557540, 16180556, 20225695, 40451390, 80902780]

約数ペア:

[(1, 80902780), (2, 40451390), (4, 20225695), (5, 16180556), (7, 11557540), (10, 8090278), (14, 5778770), (20, 4045139), (28, 2889385), (35, 2311508), (43, 1881460), (70, 1155754), (86, 940730), (89, 909020), (140, 577877), (151, 535780), (172, 470365), (178, 454510), (215, 376292), (301, 268780), (302, 267890), (356, 227255), (430, 188146), (445, 181804), (602, 134390), (604, 133945), (623, 129860), (755, 107156), (860, 94073), (890, 90902), (1057, 76540), (1204, 67195), (1246, 64930), (1505, 53756), (1510, 53578), (1780, 45451), (2114, 38270), (2492, 32465), (3010, 26878), (3020, 26789), (3115, 25972), (3827, 21140), (4228, 19135), (5285, 15308), (6020, 13439), (6230, 12986), (6493, 12460), (7654, 10570)]