161701000

素因数分解:

$2^3\times 5^3\times {\mathrm{101}}^1\times {\mathrm{1601}}^1$

素因数の和:1723

約数の個数: 64

約数和(自身を含む): 382365360

約数和(自身を除く): 220664360

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 100, 101, 125, 200, 202, 250, 404, 500, 505, 808, 1000, 1010, 1601, 2020, 2525, 3202, 4040, 5050, 6404, 8005, 10100, 12625, 12808, 16010, 20200, 25250, 32020, 40025, 50500, 64040, 80050, 101000, 160100, 161701, 200125, 320200, 323402, 400250, 646804, 800500, 808505, 1293608, 1601000, 1617010, 3234020, 4042525, 6468040, 8085050, 16170100, 20212625, 32340200, 40425250, 80850500, 161701000]

約数ペア:

[(1, 161701000), (2, 80850500), (4, 40425250), (5, 32340200), (8, 20212625), (10, 16170100), (20, 8085050), (25, 6468040), (40, 4042525), (50, 3234020), (100, 1617010), (101, 1601000), (125, 1293608), (200, 808505), (202, 800500), (250, 646804), (404, 400250), (500, 323402), (505, 320200), (808, 200125), (1000, 161701), (1010, 160100), (1601, 101000), (2020, 80050), (2525, 64040), (3202, 50500), (4040, 40025), (5050, 32020), (6404, 25250), (8005, 20200), (10100, 16010), (12625, 12808)]