201761720

素因数分解:

$2^3\times 5^1\times {\mathrm{491}}^1\times {\mathrm{10273}}^1$

素因数の和:10775

約数の個数: 32

約数和(自身を含む): 454932720

約数和(自身を除く): 253171000

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 491, 982, 1964, 2455, 3928, 4910, 9820, 10273, 19640, 20546, 41092, 51365, 82184, 102730, 205460, 410920, 5044043, 10088086, 20176172, 25220215, 40352344, 50440430, 100880860, 201761720]

約数ペア:

[(1, 201761720), (2, 100880860), (4, 50440430), (5, 40352344), (8, 25220215), (10, 20176172), (20, 10088086), (40, 5044043), (491, 410920), (982, 205460), (1964, 102730), (2455, 82184), (3928, 51365), (4910, 41092), (9820, 20546), (10273, 19640)]