1288144240

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{519413}}^1$

素因数の和:519457

約数の個数: 40

約数和(自身を含む): 3091552128

約数和(自身を除く): 1803407888

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 62, 80, 124, 155, 248, 310, 496, 620, 1240, 2480, 519413, 1038826, 2077652, 2597065, 4155304, 5194130, 8310608, 10388260, 16101803, 20776520, 32203606, 41553040, 64407212, 80509015, 128814424, 161018030, 257628848, 322036060, 644072120, 1288144240]

約数ペア:

[(1, 1288144240), (2, 644072120), (4, 322036060), (5, 257628848), (8, 161018030), (10, 128814424), (16, 80509015), (20, 64407212), (31, 41553040), (40, 32203606), (62, 20776520), (80, 16101803), (124, 10388260), (155, 8310608), (248, 5194130), (310, 4155304), (496, 2597065), (620, 2077652), (1240, 1038826), (2480, 519413)]