80493280

素因数分解:

$2^5\times 5^1\times 7^2\times {\mathrm{10267}}^1$

素因数の和:10296

約数の個数: 72

約数和(自身を含む): 221234328

約数和(自身を除く): 140741048

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 49, 56, 70, 80, 98, 112, 140, 160, 196, 224, 245, 280, 392, 490, 560, 784, 980, 1120, 1568, 1960, 3920, 7840, 10267, 20534, 41068, 51335, 71869, 82136, 102670, 143738, 164272, 205340, 287476, 328544, 359345, 410680, 503083, 574952, 718690, 821360, 1006166, 1149904, 1437380, 1642720, 2012332, 2299808, 2515415, 2874760, 4024664, 5030830, 5749520, 8049328, 10061660, 11499040, 16098656, 20123320, 40246640, 80493280]

約数ペア:

[(1, 80493280), (2, 40246640), (4, 20123320), (5, 16098656), (7, 11499040), (8, 10061660), (10, 8049328), (14, 5749520), (16, 5030830), (20, 4024664), (28, 2874760), (32, 2515415), (35, 2299808), (40, 2012332), (49, 1642720), (56, 1437380), (70, 1149904), (80, 1006166), (98, 821360), (112, 718690), (140, 574952), (160, 503083), (196, 410680), (224, 359345), (245, 328544), (280, 287476), (392, 205340), (490, 164272), (560, 143738), (784, 102670), (980, 82136), (1120, 71869), (1568, 51335), (1960, 41068), (3920, 20534), (7840, 10267)]