2011920980

素因数分解:

$2^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{151}}^1\times {\mathrm{15493}}^1$

素因数の和:15696

約数の個数: 48

約数和(自身を含む): 4352202624

約数和(自身を除く): 2340281644

約数列:

[1, 2, 4, 5, 10, 20, 43, 86, 151, 172, 215, 302, 430, 604, 755, 860, 1510, 3020, 6493, 12986, 15493, 25972, 30986, 32465, 61972, 64930, 77465, 129860, 154930, 309860, 666199, 1332398, 2339443, 2664796, 3330995, 4678886, 6661990, 9357772, 11697215, 13323980, 23394430, 46788860, 100596049, 201192098, 402384196, 502980245, 1005960490, 2011920980]

約数ペア:

[(1, 2011920980), (2, 1005960490), (4, 502980245), (5, 402384196), (10, 201192098), (20, 100596049), (43, 46788860), (86, 23394430), (151, 13323980), (172, 11697215), (215, 9357772), (302, 6661990), (430, 4678886), (604, 3330995), (755, 2664796), (860, 2339443), (1510, 1332398), (3020, 666199), (6493, 309860), (12986, 154930), (15493, 129860), (25972, 77465), (30986, 64930), (32465, 61972)]