690396720

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{221281}}^1$

素因数の和:221310

約数の個数: 80

約数和(自身を含む): 2304873312

約数和(自身を除く): 1614476592

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 16, 20, 24, 26, 30, 39, 40, 48, 52, 60, 65, 78, 80, 104, 120, 130, 156, 195, 208, 240, 260, 312, 390, 520, 624, 780, 1040, 1560, 3120, 221281, 442562, 663843, 885124, 1106405, 1327686, 1770248, 2212810, 2655372, 2876653, 3319215, 3540496, 4425620, 5310744, 5753306, 6638430, 8629959, 8851240, 10621488, 11506612, 13276860, 14383265, 17259918, 17702480, 23013224, 26553720, 28766530, 34519836, 43149795, 46026448, 53107440, 57533060, 69039672, 86299590, 115066120, 138079344, 172599180, 230132240, 345198360, 690396720]

約数ペア:

[(1, 690396720), (2, 345198360), (3, 230132240), (4, 172599180), (5, 138079344), (6, 115066120), (8, 86299590), (10, 69039672), (12, 57533060), (13, 53107440), (15, 46026448), (16, 43149795), (20, 34519836), (24, 28766530), (26, 26553720), (30, 23013224), (39, 17702480), (40, 17259918), (48, 14383265), (52, 13276860), (60, 11506612), (65, 10621488), (78, 8851240), (80, 8629959), (104, 6638430), (120, 5753306), (130, 5310744), (156, 4425620), (195, 3540496), (208, 3319215), (240, 2876653), (260, 2655372), (312, 2212810), (390, 1770248), (520, 1327686), (624, 1106405), (780, 885124), (1040, 663843), (1560, 442562), (3120, 221281)]