1211388260

素因数分解:

$2^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{661}}^1\times {\mathrm{2131}}^1$

素因数の和:2844

約数の個数: 48

約数和(自身を含む): 2608237632

約数和(自身を除く): 1396849372

約数列:

[1, 2, 4, 5, 10, 20, 43, 86, 172, 215, 430, 661, 860, 1322, 2131, 2644, 3305, 4262, 6610, 8524, 10655, 13220, 21310, 28423, 42620, 56846, 91633, 113692, 142115, 183266, 284230, 366532, 458165, 568460, 916330, 1408591, 1832660, 2817182, 5634364, 7042955, 14085910, 28171820, 60569413, 121138826, 242277652, 302847065, 605694130, 1211388260]

約数ペア:

[(1, 1211388260), (2, 605694130), (4, 302847065), (5, 242277652), (10, 121138826), (20, 60569413), (43, 28171820), (86, 14085910), (172, 7042955), (215, 5634364), (430, 2817182), (661, 1832660), (860, 1408591), (1322, 916330), (2131, 568460), (2644, 458165), (3305, 366532), (4262, 284230), (6610, 183266), (8524, 142115), (10655, 113692), (13220, 91633), (21310, 56846), (28423, 42620)]