201904720

素因数分解:

$2^4\times 5^1\times {\mathrm{103}}^1\times {\mathrm{107}}^1\times {\mathrm{229}}^1$

素因数の和:452

約数の個数: 80

約数和(自身を含む): 480504960

約数和(自身を除く): 278600240

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 103, 107, 206, 214, 229, 412, 428, 458, 515, 535, 824, 856, 916, 1030, 1070, 1145, 1648, 1712, 1832, 2060, 2140, 2290, 3664, 4120, 4280, 4580, 8240, 8560, 9160, 11021, 18320, 22042, 23587, 24503, 44084, 47174, 49006, 55105, 88168, 94348, 98012, 110210, 117935, 122515, 176336, 188696, 196024, 220420, 235870, 245030, 377392, 392048, 440840, 471740, 490060, 881680, 943480, 980120, 1886960, 1960240, 2523809, 5047618, 10095236, 12619045, 20190472, 25238090, 40380944, 50476180, 100952360, 201904720]

約数ペア:

[(1, 201904720), (2, 100952360), (4, 50476180), (5, 40380944), (8, 25238090), (10, 20190472), (16, 12619045), (20, 10095236), (40, 5047618), (80, 2523809), (103, 1960240), (107, 1886960), (206, 980120), (214, 943480), (229, 881680), (412, 490060), (428, 471740), (458, 440840), (515, 392048), (535, 377392), (824, 245030), (856, 235870), (916, 220420), (1030, 196024), (1070, 188696), (1145, 176336), (1648, 122515), (1712, 117935), (1832, 110210), (2060, 98012), (2140, 94348), (2290, 88168), (3664, 55105), (4120, 49006), (4280, 47174), (4580, 44084), (8240, 24503), (8560, 23587), (9160, 22042), (11021, 18320)]