257204640

素因数分解:

$2^5\times 3^1\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{6959}}^1$

素因数の和:6995

約数の個数: 192

約数和(自身を含む): 1010257920

約数和(自身を除く): 753053280

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 11, 12, 14, 15, 16, 20, 21, 22, 24, 28, 30, 32, 33, 35, 40, 42, 44, 48, 55, 56, 60, 66, 70, 77, 80, 84, 88, 96, 105, 110, 112, 120, 132, 140, 154, 160, 165, 168, 176, 210, 220, 224, 231, 240, 264, 280, 308, 330, 336, 352, 385, 420, 440, 462, 480, 528, 560, 616, 660, 672, 770, 840, 880, 924, 1056, 1120, 1155, 1232, 1320, 1540, 1680, 1760, 1848, 2310, 2464, 2640, 3080, 3360, 3696, 4620, 5280, 6160, 6959, 7392, 9240, 12320, 13918, 18480, 20877, 27836, 34795, 36960, 41754, 48713, 55672, 69590, 76549, 83508, 97426, 104385, 111344, 139180, 146139, 153098, 167016, 194852, 208770, 222688, 229647, 243565, 278360, 292278, 306196, 334032, 382745, 389704, 417540, 459294, 487130, 535843, 556720, 584556, 612392, 668064, 730695, 765490, 779408, 835080, 918588, 974260, 1071686, 1113440, 1148235, 1169112, 1224784, 1461390, 1530980, 1558816, 1607529, 1670160, 1837176, 1948520, 2143372, 2296470, 2338224, 2449568, 2679215, 2922780, 3061960, 3215058, 3340320, 3674352, 3897040, 4286744, 4592940, 4676448, 5358430, 5845560, 6123920, 6430116, 7348704, 7794080, 8037645, 8573488, 9185880, 10716860, 11691120, 12247840, 12860232, 16075290, 17146976, 18371760, 21433720, 23382240, 25720464, 32150580, 36743520, 42867440, 51440928, 64301160, 85734880, 128602320, 257204640]

約数ペア:

[(1, 257204640), (2, 128602320), (3, 85734880), (4, 64301160), (5, 51440928), (6, 42867440), (7, 36743520), (8, 32150580), (10, 25720464), (11, 23382240), (12, 21433720), (14, 18371760), (15, 17146976), (16, 16075290), (20, 12860232), (21, 12247840), (22, 11691120), (24, 10716860), (28, 9185880), (30, 8573488), (32, 8037645), (33, 7794080), (35, 7348704), (40, 6430116), (42, 6123920), (44, 5845560), (48, 5358430), (55, 4676448), (56, 4592940), (60, 4286744), (66, 3897040), (70, 3674352), (77, 3340320), (80, 3215058), (84, 3061960), (88, 2922780), (96, 2679215), (105, 2449568), (110, 2338224), (112, 2296470), (120, 2143372), (132, 1948520), (140, 1837176), (154, 1670160), (160, 1607529), (165, 1558816), (168, 1530980), (176, 1461390), (210, 1224784), (220, 1169112), (224, 1148235), (231, 1113440), (240, 1071686), (264, 974260), (280, 918588), (308, 835080), (330, 779408), (336, 765490), (352, 730695), (385, 668064), (420, 612392), (440, 584556), (462, 556720), (480, 535843), (528, 487130), (560, 459294), (616, 417540), (660, 389704), (672, 382745), (770, 334032), (840, 306196), (880, 292278), (924, 278360), (1056, 243565), (1120, 229647), (1155, 222688), (1232, 208770), (1320, 194852), (1540, 167016), (1680, 153098), (1760, 146139), (1848, 139180), (2310, 111344), (2464, 104385), (2640, 97426), (3080, 83508), (3360, 76549), (3696, 69590), (4620, 55672), (5280, 48713), (6160, 41754), (6959, 36960), (7392, 34795), (9240, 27836), (12320, 20877), (13918, 18480)]