28815780

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{157}}^1$

素因数の和:218

約数の個数: 192

約数和(自身を含む): 101928960

約数和(自身を除く): 73113180

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 19, 20, 21, 23, 28, 30, 35, 38, 42, 46, 57, 60, 69, 70, 76, 84, 92, 95, 105, 114, 115, 133, 138, 140, 157, 161, 190, 210, 228, 230, 266, 276, 285, 314, 322, 345, 380, 399, 420, 437, 460, 471, 483, 532, 570, 628, 644, 665, 690, 785, 798, 805, 874, 942, 966, 1099, 1140, 1311, 1330, 1380, 1570, 1596, 1610, 1748, 1884, 1932, 1995, 2185, 2198, 2355, 2415, 2622, 2660, 2983, 3059, 3140, 3220, 3297, 3611, 3990, 4370, 4396, 4710, 4830, 5244, 5495, 5966, 6118, 6555, 6594, 7222, 7980, 8740, 8949, 9177, 9420, 9660, 10833, 10990, 11932, 12236, 13110, 13188, 14444, 14915, 15295, 16485, 17898, 18055, 18354, 20881, 21666, 21980, 25277, 26220, 29830, 30590, 32970, 35796, 36110, 36708, 41762, 43332, 44745, 45885, 50554, 54165, 59660, 61180, 62643, 65940, 68609, 72220, 75831, 83524, 89490, 91770, 101108, 104405, 108330, 125286, 126385, 137218, 151662, 178980, 183540, 205827, 208810, 216660, 250572, 252770, 274436, 303324, 313215, 343045, 379155, 411654, 417620, 480263, 505540, 626430, 686090, 758310, 823308, 960526, 1029135, 1252860, 1372180, 1440789, 1516620, 1921052, 2058270, 2401315, 2881578, 4116540, 4802630, 5763156, 7203945, 9605260, 14407890, 28815780]

約数ペア:

[(1, 28815780), (2, 14407890), (3, 9605260), (4, 7203945), (5, 5763156), (6, 4802630), (7, 4116540), (10, 2881578), (12, 2401315), (14, 2058270), (15, 1921052), (19, 1516620), (20, 1440789), (21, 1372180), (23, 1252860), (28, 1029135), (30, 960526), (35, 823308), (38, 758310), (42, 686090), (46, 626430), (57, 505540), (60, 480263), (69, 417620), (70, 411654), (76, 379155), (84, 343045), (92, 313215), (95, 303324), (105, 274436), (114, 252770), (115, 250572), (133, 216660), (138, 208810), (140, 205827), (157, 183540), (161, 178980), (190, 151662), (210, 137218), (228, 126385), (230, 125286), (266, 108330), (276, 104405), (285, 101108), (314, 91770), (322, 89490), (345, 83524), (380, 75831), (399, 72220), (420, 68609), (437, 65940), (460, 62643), (471, 61180), (483, 59660), (532, 54165), (570, 50554), (628, 45885), (644, 44745), (665, 43332), (690, 41762), (785, 36708), (798, 36110), (805, 35796), (874, 32970), (942, 30590), (966, 29830), (1099, 26220), (1140, 25277), (1311, 21980), (1330, 21666), (1380, 20881), (1570, 18354), (1596, 18055), (1610, 17898), (1748, 16485), (1884, 15295), (1932, 14915), (1995, 14444), (2185, 13188), (2198, 13110), (2355, 12236), (2415, 11932), (2622, 10990), (2660, 10833), (2983, 9660), (3059, 9420), (3140, 9177), (3220, 8949), (3297, 8740), (3611, 7980), (3990, 7222), (4370, 6594), (4396, 6555), (4710, 6118), (4830, 5966), (5244, 5495)]