4450180

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{19}}^1\times {\mathrm{239}}^1$

素因数の和:281

約数の個数: 72

約数和(自身を含む): 11491200

約数和(自身を除く): 7041020

約数列:

[1, 2, 4, 5, 7, 10, 14, 19, 20, 28, 35, 38, 49, 70, 76, 95, 98, 133, 140, 190, 196, 239, 245, 266, 380, 478, 490, 532, 665, 931, 956, 980, 1195, 1330, 1673, 1862, 2390, 2660, 3346, 3724, 4541, 4655, 4780, 6692, 8365, 9082, 9310, 11711, 16730, 18164, 18620, 22705, 23422, 31787, 33460, 45410, 46844, 58555, 63574, 90820, 117110, 127148, 158935, 222509, 234220, 317870, 445018, 635740, 890036, 1112545, 2225090, 4450180]

約数ペア:

[(1, 4450180), (2, 2225090), (4, 1112545), (5, 890036), (7, 635740), (10, 445018), (14, 317870), (19, 234220), (20, 222509), (28, 158935), (35, 127148), (38, 117110), (49, 90820), (70, 63574), (76, 58555), (95, 46844), (98, 45410), (133, 33460), (140, 31787), (190, 23422), (196, 22705), (239, 18620), (245, 18164), (266, 16730), (380, 11711), (478, 9310), (490, 9082), (532, 8365), (665, 6692), (931, 4780), (956, 4655), (980, 4541), (1195, 3724), (1330, 3346), (1673, 2660), (1862, 2390)]