225720

素因数分解:

$2^3\times 3^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1$

素因数の和:50

約数の個数: 128

約数和(自身を含む): 864000

約数和(自身を除く): 638280

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 11, 12, 15, 18, 19, 20, 22, 24, 27, 30, 33, 36, 38, 40, 44, 45, 54, 55, 57, 60, 66, 72, 76, 88, 90, 95, 99, 108, 110, 114, 120, 132, 135, 152, 165, 171, 180, 190, 198, 209, 216, 220, 228, 264, 270, 285, 297, 330, 342, 360, 380, 396, 418, 440, 456, 495, 513, 540, 570, 594, 627, 660, 684, 760, 792, 836, 855, 990, 1026, 1045, 1080, 1140, 1188, 1254, 1320, 1368, 1485, 1672, 1710, 1881, 1980, 2052, 2090, 2280, 2376, 2508, 2565, 2970, 3135, 3420, 3762, 3960, 4104, 4180, 5016, 5130, 5643, 5940, 6270, 6840, 7524, 8360, 9405, 10260, 11286, 11880, 12540, 15048, 18810, 20520, 22572, 25080, 28215, 37620, 45144, 56430, 75240, 112860, 225720]

約数ペア:

[(1, 225720), (2, 112860), (3, 75240), (4, 56430), (5, 45144), (6, 37620), (8, 28215), (9, 25080), (10, 22572), (11, 20520), (12, 18810), (15, 15048), (18, 12540), (19, 11880), (20, 11286), (22, 10260), (24, 9405), (27, 8360), (30, 7524), (33, 6840), (36, 6270), (38, 5940), (40, 5643), (44, 5130), (45, 5016), (54, 4180), (55, 4104), (57, 3960), (60, 3762), (66, 3420), (72, 3135), (76, 2970), (88, 2565), (90, 2508), (95, 2376), (99, 2280), (108, 2090), (110, 2052), (114, 1980), (120, 1881), (132, 1710), (135, 1672), (152, 1485), (165, 1368), (171, 1320), (180, 1254), (190, 1188), (198, 1140), (209, 1080), (216, 1045), (220, 1026), (228, 990), (264, 855), (270, 836), (285, 792), (297, 760), (330, 684), (342, 660), (360, 627), (380, 594), (396, 570), (418, 540), (440, 513), (456, 495)]