128662120

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{431}}^1\times {\mathrm{439}}^1$

素因数の和:898

約数の個数: 64

約数和(自身を含む): 307929600

約数和(自身を除く): 179267480

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 85, 136, 170, 340, 431, 439, 680, 862, 878, 1724, 1756, 2155, 2195, 3448, 3512, 4310, 4390, 7327, 7463, 8620, 8780, 14654, 14926, 17240, 17560, 29308, 29852, 36635, 37315, 58616, 59704, 73270, 74630, 146540, 149260, 189209, 293080, 298520, 378418, 756836, 946045, 1513672, 1892090, 3216553, 3784180, 6433106, 7568360, 12866212, 16082765, 25732424, 32165530, 64331060, 128662120]

約数ペア:

[(1, 128662120), (2, 64331060), (4, 32165530), (5, 25732424), (8, 16082765), (10, 12866212), (17, 7568360), (20, 6433106), (34, 3784180), (40, 3216553), (68, 1892090), (85, 1513672), (136, 946045), (170, 756836), (340, 378418), (431, 298520), (439, 293080), (680, 189209), (862, 149260), (878, 146540), (1724, 74630), (1756, 73270), (2155, 59704), (2195, 58616), (3448, 37315), (3512, 36635), (4310, 29852), (4390, 29308), (7327, 17560), (7463, 17240), (8620, 14926), (8780, 14654)]