644316720

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{127}}^1\times {\mathrm{21139}}^1$

素因数の和:21282

約数の個数: 80

約数和(自身を含む): 2013204480

約数和(自身を除く): 1368887760

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 127, 240, 254, 381, 508, 635, 762, 1016, 1270, 1524, 1905, 2032, 2540, 3048, 3810, 5080, 6096, 7620, 10160, 15240, 21139, 30480, 42278, 63417, 84556, 105695, 126834, 169112, 211390, 253668, 317085, 338224, 422780, 507336, 634170, 845560, 1014672, 1268340, 1691120, 2536680, 2684653, 5073360, 5369306, 8053959, 10738612, 13423265, 16107918, 21477224, 26846530, 32215836, 40269795, 42954448, 53693060, 64431672, 80539590, 107386120, 128863344, 161079180, 214772240, 322158360, 644316720]

約数ペア:

[(1, 644316720), (2, 322158360), (3, 214772240), (4, 161079180), (5, 128863344), (6, 107386120), (8, 80539590), (10, 64431672), (12, 53693060), (15, 42954448), (16, 40269795), (20, 32215836), (24, 26846530), (30, 21477224), (40, 16107918), (48, 13423265), (60, 10738612), (80, 8053959), (120, 5369306), (127, 5073360), (240, 2684653), (254, 2536680), (381, 1691120), (508, 1268340), (635, 1014672), (762, 845560), (1016, 634170), (1270, 507336), (1524, 422780), (1905, 338224), (2032, 317085), (2540, 253668), (3048, 211390), (3810, 169112), (5080, 126834), (6096, 105695), (7620, 84556), (10160, 63417), (15240, 42278), (21139, 30480)]