255921240

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{67}}^1\times {\mathrm{139}}^1\times {\mathrm{229}}^1$

素因数の和:449

約数の個数: 128

約数和(自身を含む): 788256000

約数和(自身を除く): 532334760

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 67, 120, 134, 139, 201, 229, 268, 278, 335, 402, 417, 458, 536, 556, 670, 687, 695, 804, 834, 916, 1005, 1112, 1145, 1340, 1374, 1390, 1608, 1668, 1832, 2010, 2085, 2290, 2680, 2748, 2780, 3336, 3435, 4020, 4170, 4580, 5496, 5560, 6870, 8040, 8340, 9160, 9313, 13740, 15343, 16680, 18626, 27480, 27939, 30686, 31831, 37252, 46029, 46565, 55878, 61372, 63662, 74504, 76715, 92058, 93130, 95493, 111756, 122744, 127324, 139695, 153430, 159155, 184116, 186260, 190986, 223512, 230145, 254648, 279390, 306860, 318310, 368232, 372520, 381972, 460290, 477465, 558780, 613720, 636620, 763944, 920580, 954930, 1117560, 1273240, 1841160, 1909860, 2132677, 3819720, 4265354, 6398031, 8530708, 10663385, 12796062, 17061416, 21326770, 25592124, 31990155, 42653540, 51184248, 63980310, 85307080, 127960620, 255921240]

約数ペア:

[(1, 255921240), (2, 127960620), (3, 85307080), (4, 63980310), (5, 51184248), (6, 42653540), (8, 31990155), (10, 25592124), (12, 21326770), (15, 17061416), (20, 12796062), (24, 10663385), (30, 8530708), (40, 6398031), (60, 4265354), (67, 3819720), (120, 2132677), (134, 1909860), (139, 1841160), (201, 1273240), (229, 1117560), (268, 954930), (278, 920580), (335, 763944), (402, 636620), (417, 613720), (458, 558780), (536, 477465), (556, 460290), (670, 381972), (687, 372520), (695, 368232), (804, 318310), (834, 306860), (916, 279390), (1005, 254648), (1112, 230145), (1145, 223512), (1340, 190986), (1374, 186260), (1390, 184116), (1608, 159155), (1668, 153430), (1832, 139695), (2010, 127324), (2085, 122744), (2290, 111756), (2680, 95493), (2748, 93130), (2780, 92058), (3336, 76715), (3435, 74504), (4020, 63662), (4170, 61372), (4580, 55878), (5496, 46565), (5560, 46029), (6870, 37252), (8040, 31831), (8340, 30686), (9160, 27939), (9313, 27480), (13740, 18626), (15343, 16680)]