256779720

素因数分解:

$2^3\times 3^4\times 5^1\times {\mathrm{41}}^1\times {\mathrm{1933}}^1$

素因数の和:1997

約数の個数: 160

約数和(自身を含む): 884572920

約数和(自身を除く): 627793200

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 27, 30, 36, 40, 41, 45, 54, 60, 72, 81, 82, 90, 108, 120, 123, 135, 162, 164, 180, 205, 216, 246, 270, 324, 328, 360, 369, 405, 410, 492, 540, 615, 648, 738, 810, 820, 984, 1080, 1107, 1230, 1476, 1620, 1640, 1845, 1933, 2214, 2460, 2952, 3240, 3321, 3690, 3866, 4428, 4920, 5535, 5799, 6642, 7380, 7732, 8856, 9665, 11070, 11598, 13284, 14760, 15464, 16605, 17397, 19330, 22140, 23196, 26568, 28995, 33210, 34794, 38660, 44280, 46392, 52191, 57990, 66420, 69588, 77320, 79253, 86985, 104382, 115980, 132840, 139176, 156573, 158506, 173970, 208764, 231960, 237759, 260955, 313146, 317012, 347940, 396265, 417528, 475518, 521910, 626292, 634024, 695880, 713277, 782865, 792530, 951036, 1043820, 1188795, 1252584, 1426554, 1565730, 1585060, 1902072, 2087640, 2139831, 2377590, 2853108, 3131460, 3170120, 3566385, 4279662, 4755180, 5706216, 6262920, 6419493, 7132770, 8559324, 9510360, 10699155, 12838986, 14265540, 17118648, 21398310, 25677972, 28531080, 32097465, 42796620, 51355944, 64194930, 85593240, 128389860, 256779720]

約数ペア:

[(1, 256779720), (2, 128389860), (3, 85593240), (4, 64194930), (5, 51355944), (6, 42796620), (8, 32097465), (9, 28531080), (10, 25677972), (12, 21398310), (15, 17118648), (18, 14265540), (20, 12838986), (24, 10699155), (27, 9510360), (30, 8559324), (36, 7132770), (40, 6419493), (41, 6262920), (45, 5706216), (54, 4755180), (60, 4279662), (72, 3566385), (81, 3170120), (82, 3131460), (90, 2853108), (108, 2377590), (120, 2139831), (123, 2087640), (135, 1902072), (162, 1585060), (164, 1565730), (180, 1426554), (205, 1252584), (216, 1188795), (246, 1043820), (270, 951036), (324, 792530), (328, 782865), (360, 713277), (369, 695880), (405, 634024), (410, 626292), (492, 521910), (540, 475518), (615, 417528), (648, 396265), (738, 347940), (810, 317012), (820, 313146), (984, 260955), (1080, 237759), (1107, 231960), (1230, 208764), (1476, 173970), (1620, 158506), (1640, 156573), (1845, 139176), (1933, 132840), (2214, 115980), (2460, 104382), (2952, 86985), (3240, 79253), (3321, 77320), (3690, 69588), (3866, 66420), (4428, 57990), (4920, 52191), (5535, 46392), (5799, 44280), (6642, 38660), (7380, 34794), (7732, 33210), (8856, 28995), (9665, 26568), (11070, 23196), (11598, 22140), (13284, 19330), (14760, 17397), (15464, 16605)]