87370880

素因数分解:

$2^7\times 5^1\times {\mathrm{211}}^1\times {\mathrm{647}}^1$

素因数の和:877

約数の個数: 64

約数和(自身を含む): 210185280

約数和(自身を除く): 122814400

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 211, 320, 422, 640, 647, 844, 1055, 1294, 1688, 2110, 2588, 3235, 3376, 4220, 5176, 6470, 6752, 8440, 10352, 12940, 13504, 16880, 20704, 25880, 27008, 33760, 41408, 51760, 67520, 82816, 103520, 135040, 136517, 207040, 273034, 414080, 546068, 682585, 1092136, 1365170, 2184272, 2730340, 4368544, 5460680, 8737088, 10921360, 17474176, 21842720, 43685440, 87370880]

約数ペア:

[(1, 87370880), (2, 43685440), (4, 21842720), (5, 17474176), (8, 10921360), (10, 8737088), (16, 5460680), (20, 4368544), (32, 2730340), (40, 2184272), (64, 1365170), (80, 1092136), (128, 682585), (160, 546068), (211, 414080), (320, 273034), (422, 207040), (640, 136517), (647, 135040), (844, 103520), (1055, 82816), (1294, 67520), (1688, 51760), (2110, 41408), (2588, 33760), (3235, 27008), (3376, 25880), (4220, 20704), (5176, 16880), (6470, 13504), (6752, 12940), (8440, 10352)]