8999120

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{509}}^1$

素因数の和:552

約数の個数: 80

約数和(自身を含む): 23904720

約数和(自身を除く): 14905600

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 17, 20, 26, 34, 40, 52, 65, 68, 80, 85, 104, 130, 136, 170, 208, 221, 260, 272, 340, 442, 509, 520, 680, 884, 1018, 1040, 1105, 1360, 1768, 2036, 2210, 2545, 3536, 4072, 4420, 5090, 6617, 8144, 8653, 8840, 10180, 13234, 17306, 17680, 20360, 26468, 33085, 34612, 40720, 43265, 52936, 66170, 69224, 86530, 105872, 112489, 132340, 138448, 173060, 224978, 264680, 346120, 449956, 529360, 562445, 692240, 899912, 1124890, 1799824, 2249780, 4499560, 8999120]

約数ペア:

[(1, 8999120), (2, 4499560), (4, 2249780), (5, 1799824), (8, 1124890), (10, 899912), (13, 692240), (16, 562445), (17, 529360), (20, 449956), (26, 346120), (34, 264680), (40, 224978), (52, 173060), (65, 138448), (68, 132340), (80, 112489), (85, 105872), (104, 86530), (130, 69224), (136, 66170), (170, 52936), (208, 43265), (221, 40720), (260, 34612), (272, 33085), (340, 26468), (442, 20360), (509, 17680), (520, 17306), (680, 13234), (884, 10180), (1018, 8840), (1040, 8653), (1105, 8144), (1360, 6617), (1768, 5090), (2036, 4420), (2210, 4072), (2545, 3536)]