129053240

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{78691}}^1$

素因数の和:78743

約数の個数: 32

約数和(自身を含む): 297455760

約数和(自身を除く): 168402520

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 82, 164, 205, 328, 410, 820, 1640, 78691, 157382, 314764, 393455, 629528, 786910, 1573820, 3147640, 3226331, 6452662, 12905324, 16131655, 25810648, 32263310, 64526620, 129053240]

約数ペア:

[(1, 129053240), (2, 64526620), (4, 32263310), (5, 25810648), (8, 16131655), (10, 12905324), (20, 6452662), (40, 3226331), (41, 3147640), (82, 1573820), (164, 786910), (205, 629528), (328, 393455), (410, 314764), (820, 157382), (1640, 78691)]