89368520

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{54493}}^1$

素因数の和:54545

約数の個数: 32

約数和(自身を含む): 205987320

約数和(自身を除く): 116618800

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 82, 164, 205, 328, 410, 820, 1640, 54493, 108986, 217972, 272465, 435944, 544930, 1089860, 2179720, 2234213, 4468426, 8936852, 11171065, 17873704, 22342130, 44684260, 89368520]

約数ペア:

[(1, 89368520), (2, 44684260), (4, 22342130), (5, 17873704), (8, 11171065), (10, 8936852), (20, 4468426), (40, 2234213), (41, 2179720), (82, 1089860), (164, 544930), (205, 435944), (328, 272465), (410, 217972), (820, 108986), (1640, 54493)]