143990420

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{349}}^1\times {\mathrm{421}}^1$

素因数の和:793

約数の個数: 72

約数和(自身を含む): 353593800

約数和(自身を除く): 209603380

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 349, 421, 490, 698, 842, 980, 1396, 1684, 1745, 2105, 2443, 2947, 3490, 4210, 4886, 5894, 6980, 8420, 9772, 11788, 12215, 14735, 17101, 20629, 24430, 29470, 34202, 41258, 48860, 58940, 68404, 82516, 85505, 103145, 146929, 171010, 206290, 293858, 342020, 412580, 587716, 734645, 1028503, 1469290, 2057006, 2938580, 4114012, 5142515, 7199521, 10285030, 14399042, 20570060, 28798084, 35997605, 71995210, 143990420]

約数ペア:

[(1, 143990420), (2, 71995210), (4, 35997605), (5, 28798084), (7, 20570060), (10, 14399042), (14, 10285030), (20, 7199521), (28, 5142515), (35, 4114012), (49, 2938580), (70, 2057006), (98, 1469290), (140, 1028503), (196, 734645), (245, 587716), (349, 412580), (421, 342020), (490, 293858), (698, 206290), (842, 171010), (980, 146929), (1396, 103145), (1684, 85505), (1745, 82516), (2105, 68404), (2443, 58940), (2947, 48860), (3490, 41258), (4210, 34202), (4886, 29470), (5894, 24430), (6980, 20629), (8420, 17101), (9772, 14735), (11788, 12215)]