202917760

素因数分解:

$2^7\times 5^1\times {\mathrm{139}}^1\times {\mathrm{2281}}^1$

素因数の和:2439

約数の個数: 64

約数和(自身を含む): 488804400

約数和(自身を除く): 285886640

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 139, 160, 278, 320, 556, 640, 695, 1112, 1390, 2224, 2281, 2780, 4448, 4562, 5560, 8896, 9124, 11120, 11405, 17792, 18248, 22240, 22810, 36496, 44480, 45620, 72992, 88960, 91240, 145984, 182480, 291968, 317059, 364960, 634118, 729920, 1268236, 1459840, 1585295, 2536472, 3170590, 5072944, 6341180, 10145888, 12682360, 20291776, 25364720, 40583552, 50729440, 101458880, 202917760]

約数ペア:

[(1, 202917760), (2, 101458880), (4, 50729440), (5, 40583552), (8, 25364720), (10, 20291776), (16, 12682360), (20, 10145888), (32, 6341180), (40, 5072944), (64, 3170590), (80, 2536472), (128, 1585295), (139, 1459840), (160, 1268236), (278, 729920), (320, 634118), (556, 364960), (640, 317059), (695, 291968), (1112, 182480), (1390, 145984), (2224, 91240), (2281, 88960), (2780, 72992), (4448, 45620), (4562, 44480), (5560, 36496), (8896, 22810), (9124, 22240), (11120, 18248), (11405, 17792)]