2040392720

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{822739}}^1$

素因数の和:822783

約数の個数: 40

約数和(自身を含む): 4896948480

約数和(自身を除く): 2856555760

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 62, 80, 124, 155, 248, 310, 496, 620, 1240, 2480, 822739, 1645478, 3290956, 4113695, 6581912, 8227390, 13163824, 16454780, 25504909, 32909560, 51009818, 65819120, 102019636, 127524545, 204039272, 255049090, 408078544, 510098180, 1020196360, 2040392720]

約数ペア:

[(1, 2040392720), (2, 1020196360), (4, 510098180), (5, 408078544), (8, 255049090), (10, 204039272), (16, 127524545), (20, 102019636), (31, 65819120), (40, 51009818), (62, 32909560), (80, 25504909), (124, 16454780), (155, 13163824), (248, 8227390), (310, 6581912), (496, 4113695), (620, 3290956), (1240, 1645478), (2480, 822739)]