428994500

素因数分解:

$2^2\times 5^3\times {\mathrm{11}}^1\times {\mathrm{77999}}^1$

素因数の和:78029

約数の個数: 48

約数和(自身を含む): 1022112000

約数和(自身を除く): 593117500

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 25, 44, 50, 55, 100, 110, 125, 220, 250, 275, 500, 550, 1100, 1375, 2750, 5500, 77999, 155998, 311996, 389995, 779990, 857989, 1559980, 1715978, 1949975, 3431956, 3899950, 4289945, 7799900, 8579890, 9749875, 17159780, 19499750, 21449725, 38999500, 42899450, 85798900, 107248625, 214497250, 428994500]

約数ペア:

[(1, 428994500), (2, 214497250), (4, 107248625), (5, 85798900), (10, 42899450), (11, 38999500), (20, 21449725), (22, 19499750), (25, 17159780), (44, 9749875), (50, 8579890), (55, 7799900), (100, 4289945), (110, 3899950), (125, 3431956), (220, 1949975), (250, 1715978), (275, 1559980), (500, 857989), (550, 779990), (1100, 389995), (1375, 311996), (2750, 155998), (5500, 77999)]