258448520

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{8273}}^1$

素因数の和:8366

約数の個数: 64

約数和(自身を含む): 643386240

約数和(自身を除く): 384937720

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 71, 88, 110, 142, 220, 284, 355, 440, 568, 710, 781, 1420, 1562, 2840, 3124, 3905, 6248, 7810, 8273, 15620, 16546, 31240, 33092, 41365, 66184, 82730, 91003, 165460, 182006, 330920, 364012, 455015, 587383, 728024, 910030, 1174766, 1820060, 2349532, 2936915, 3640120, 4699064, 5873830, 6461213, 11747660, 12922426, 23495320, 25844852, 32306065, 51689704, 64612130, 129224260, 258448520]

約数ペア:

[(1, 258448520), (2, 129224260), (4, 64612130), (5, 51689704), (8, 32306065), (10, 25844852), (11, 23495320), (20, 12922426), (22, 11747660), (40, 6461213), (44, 5873830), (55, 4699064), (71, 3640120), (88, 2936915), (110, 2349532), (142, 1820060), (220, 1174766), (284, 910030), (355, 728024), (440, 587383), (568, 455015), (710, 364012), (781, 330920), (1420, 182006), (1562, 165460), (2840, 91003), (3124, 82730), (3905, 66184), (6248, 41365), (7810, 33092), (8273, 31240), (15620, 16546)]