858798980

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{641}}^1\times {\mathrm{5153}}^1$

素因数の和:5816

約数の個数: 48

約数和(自身を含む): 1945614384

約数和(自身を除く): 1086815404

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 641, 1282, 2564, 3205, 5153, 6410, 8333, 10306, 12820, 16666, 20612, 25765, 33332, 41665, 51530, 66989, 83330, 103060, 133978, 166660, 267956, 334945, 669890, 1339780, 3303073, 6606146, 13212292, 16515365, 33030730, 42939949, 66061460, 85879898, 171759796, 214699745, 429399490, 858798980]

約数ペア:

[(1, 858798980), (2, 429399490), (4, 214699745), (5, 171759796), (10, 85879898), (13, 66061460), (20, 42939949), (26, 33030730), (52, 16515365), (65, 13212292), (130, 6606146), (260, 3303073), (641, 1339780), (1282, 669890), (2564, 334945), (3205, 267956), (5153, 166660), (6410, 133978), (8333, 103060), (10306, 83330), (12820, 66989), (16666, 51530), (20612, 41665), (25765, 33332)]