640483440

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{439}}^1\times {\mathrm{6079}}^1$

素因数の和:6534

約数の個数: 80

約数和(自身を含む): 1990348800

約数和(自身を除く): 1349865360

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 240, 439, 878, 1317, 1756, 2195, 2634, 3512, 4390, 5268, 6079, 6585, 7024, 8780, 10536, 12158, 13170, 17560, 18237, 21072, 24316, 26340, 30395, 35120, 36474, 48632, 52680, 60790, 72948, 91185, 97264, 105360, 121580, 145896, 182370, 243160, 291792, 364740, 486320, 729480, 1458960, 2668681, 5337362, 8006043, 10674724, 13343405, 16012086, 21349448, 26686810, 32024172, 40030215, 42698896, 53373620, 64048344, 80060430, 106747240, 128096688, 160120860, 213494480, 320241720, 640483440]

約数ペア:

[(1, 640483440), (2, 320241720), (3, 213494480), (4, 160120860), (5, 128096688), (6, 106747240), (8, 80060430), (10, 64048344), (12, 53373620), (15, 42698896), (16, 40030215), (20, 32024172), (24, 26686810), (30, 21349448), (40, 16012086), (48, 13343405), (60, 10674724), (80, 8006043), (120, 5337362), (240, 2668681), (439, 1458960), (878, 729480), (1317, 486320), (1756, 364740), (2195, 291792), (2634, 243160), (3512, 182370), (4390, 145896), (5268, 121580), (6079, 105360), (6585, 97264), (7024, 91185), (8780, 72948), (10536, 60790), (12158, 52680), (13170, 48632), (17560, 36474), (18237, 35120), (21072, 30395), (24316, 26340)]