201231720

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{131}}^1\times {\mathrm{251}}^1$

素因数の和:416

約数の個数: 192

約数和(自身を含む): 700539840

約数和(自身を除く): 499308120

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 17, 18, 20, 24, 30, 34, 36, 40, 45, 51, 60, 68, 72, 85, 90, 102, 120, 131, 136, 153, 170, 180, 204, 251, 255, 262, 306, 340, 360, 393, 408, 502, 510, 524, 612, 655, 680, 753, 765, 786, 1004, 1020, 1048, 1179, 1224, 1255, 1310, 1506, 1530, 1572, 1965, 2008, 2040, 2227, 2259, 2358, 2510, 2620, 3012, 3060, 3144, 3765, 3930, 4267, 4454, 4518, 4716, 5020, 5240, 5895, 6024, 6120, 6681, 7530, 7860, 8534, 8908, 9036, 9432, 10040, 11135, 11295, 11790, 12801, 13362, 15060, 15720, 17068, 17816, 18072, 20043, 21335, 22270, 22590, 23580, 25602, 26724, 30120, 32881, 33405, 34136, 38403, 40086, 42670, 44540, 45180, 47160, 51204, 53448, 64005, 65762, 66810, 76806, 80172, 85340, 89080, 90360, 98643, 100215, 102408, 128010, 131524, 133620, 153612, 160344, 164405, 170680, 192015, 197286, 200430, 256020, 263048, 267240, 295929, 307224, 328810, 384030, 394572, 400860, 493215, 512040, 558977, 591858, 657620, 768060, 789144, 801720, 986430, 1117954, 1183716, 1315240, 1479645, 1536120, 1676931, 1972860, 2235908, 2367432, 2794885, 2959290, 3353862, 3945720, 4471816, 5030793, 5589770, 5918580, 6707724, 8384655, 10061586, 11179540, 11837160, 13415448, 16769310, 20123172, 22359080, 25153965, 33538620, 40246344, 50307930, 67077240, 100615860, 201231720]

約数ペア:

[(1, 201231720), (2, 100615860), (3, 67077240), (4, 50307930), (5, 40246344), (6, 33538620), (8, 25153965), (9, 22359080), (10, 20123172), (12, 16769310), (15, 13415448), (17, 11837160), (18, 11179540), (20, 10061586), (24, 8384655), (30, 6707724), (34, 5918580), (36, 5589770), (40, 5030793), (45, 4471816), (51, 3945720), (60, 3353862), (68, 2959290), (72, 2794885), (85, 2367432), (90, 2235908), (102, 1972860), (120, 1676931), (131, 1536120), (136, 1479645), (153, 1315240), (170, 1183716), (180, 1117954), (204, 986430), (251, 801720), (255, 789144), (262, 768060), (306, 657620), (340, 591858), (360, 558977), (393, 512040), (408, 493215), (502, 400860), (510, 394572), (524, 384030), (612, 328810), (655, 307224), (680, 295929), (753, 267240), (765, 263048), (786, 256020), (1004, 200430), (1020, 197286), (1048, 192015), (1179, 170680), (1224, 164405), (1255, 160344), (1310, 153612), (1506, 133620), (1530, 131524), (1572, 128010), (1965, 102408), (2008, 100215), (2040, 98643), (2227, 90360), (2259, 89080), (2358, 85340), (2510, 80172), (2620, 76806), (3012, 66810), (3060, 65762), (3144, 64005), (3765, 53448), (3930, 51204), (4267, 47160), (4454, 45180), (4518, 44540), (4716, 42670), (5020, 40086), (5240, 38403), (5895, 34136), (6024, 33405), (6120, 32881), (6681, 30120), (7530, 26724), (7860, 25602), (8534, 23580), (8908, 22590), (9036, 22270), (9432, 21335), (10040, 20043), (11135, 18072), (11295, 17816), (11790, 17068), (12801, 15720), (13362, 15060)]