201010000

素因数分解:

$2^4\times 5^4\times {\mathrm{20101}}^1$

素因数の和:20129

約数の個数: 50

約数和(自身を含む): 486689522

約数和(自身を除く): 285679522

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 125, 200, 250, 400, 500, 625, 1000, 1250, 2000, 2500, 5000, 10000, 20101, 40202, 80404, 100505, 160808, 201010, 321616, 402020, 502525, 804040, 1005050, 1608080, 2010100, 2512625, 4020200, 5025250, 8040400, 10050500, 12563125, 20101000, 25126250, 40202000, 50252500, 100505000, 201010000]

約数ペア:

[(1, 201010000), (2, 100505000), (4, 50252500), (5, 40202000), (8, 25126250), (10, 20101000), (16, 12563125), (20, 10050500), (25, 8040400), (40, 5025250), (50, 4020200), (80, 2512625), (100, 2010100), (125, 1608080), (200, 1005050), (250, 804040), (400, 502525), (500, 402020), (625, 321616), (1000, 201010), (1250, 160808), (2000, 100505), (2500, 80404), (5000, 40202), (10000, 20101)]