209650400

素因数分解:

$2^5\times 5^2\times {\mathrm{503}}^1\times {\mathrm{521}}^1$

素因数の和:1044

約数の個数: 72

約数和(自身を含む): 513810864

約数和(自身を除く): 304160464

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 80, 100, 160, 200, 400, 503, 521, 800, 1006, 1042, 2012, 2084, 2515, 2605, 4024, 4168, 5030, 5210, 8048, 8336, 10060, 10420, 12575, 13025, 16096, 16672, 20120, 20840, 25150, 26050, 40240, 41680, 50300, 52100, 80480, 83360, 100600, 104200, 201200, 208400, 262063, 402400, 416800, 524126, 1048252, 1310315, 2096504, 2620630, 4193008, 5241260, 6551575, 8386016, 10482520, 13103150, 20965040, 26206300, 41930080, 52412600, 104825200, 209650400]

約数ペア:

[(1, 209650400), (2, 104825200), (4, 52412600), (5, 41930080), (8, 26206300), (10, 20965040), (16, 13103150), (20, 10482520), (25, 8386016), (32, 6551575), (40, 5241260), (50, 4193008), (80, 2620630), (100, 2096504), (160, 1310315), (200, 1048252), (400, 524126), (503, 416800), (521, 402400), (800, 262063), (1006, 208400), (1042, 201200), (2012, 104200), (2084, 100600), (2515, 83360), (2605, 80480), (4024, 52100), (4168, 50300), (5030, 41680), (5210, 40240), (8048, 26050), (8336, 25150), (10060, 20840), (10420, 20120), (12575, 16672), (13025, 16096)]