20608920

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{131}}^1$

素因数の和:190

約数の個数: 192

約数和(自身を含む): 74131200

約数和(自身を除く): 53522280

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 19, 20, 23, 24, 30, 36, 38, 40, 45, 46, 57, 60, 69, 72, 76, 90, 92, 95, 114, 115, 120, 131, 138, 152, 171, 180, 184, 190, 207, 228, 230, 262, 276, 285, 342, 345, 360, 380, 393, 414, 437, 456, 460, 524, 552, 570, 655, 684, 690, 760, 786, 828, 855, 874, 920, 1035, 1048, 1140, 1179, 1310, 1311, 1368, 1380, 1572, 1656, 1710, 1748, 1965, 2070, 2185, 2280, 2358, 2489, 2620, 2622, 2760, 3013, 3144, 3420, 3496, 3930, 3933, 4140, 4370, 4716, 4978, 5240, 5244, 5895, 6026, 6555, 6840, 7467, 7860, 7866, 8280, 8740, 9039, 9432, 9956, 10488, 11790, 12052, 12445, 13110, 14934, 15065, 15720, 15732, 17480, 18078, 19665, 19912, 22401, 23580, 24104, 24890, 26220, 27117, 29868, 30130, 31464, 36156, 37335, 39330, 44802, 45195, 47160, 49780, 52440, 54234, 57247, 59736, 60260, 72312, 74670, 78660, 89604, 90390, 99560, 108468, 112005, 114494, 120520, 135585, 149340, 157320, 171741, 179208, 180780, 216936, 224010, 228988, 271170, 286235, 298680, 343482, 361560, 448020, 457976, 515223, 542340, 572470, 686964, 858705, 896040, 1030446, 1084680, 1144940, 1373928, 1717410, 2060892, 2289880, 2576115, 3434820, 4121784, 5152230, 6869640, 10304460, 20608920]

約数ペア:

[(1, 20608920), (2, 10304460), (3, 6869640), (4, 5152230), (5, 4121784), (6, 3434820), (8, 2576115), (9, 2289880), (10, 2060892), (12, 1717410), (15, 1373928), (18, 1144940), (19, 1084680), (20, 1030446), (23, 896040), (24, 858705), (30, 686964), (36, 572470), (38, 542340), (40, 515223), (45, 457976), (46, 448020), (57, 361560), (60, 343482), (69, 298680), (72, 286235), (76, 271170), (90, 228988), (92, 224010), (95, 216936), (114, 180780), (115, 179208), (120, 171741), (131, 157320), (138, 149340), (152, 135585), (171, 120520), (180, 114494), (184, 112005), (190, 108468), (207, 99560), (228, 90390), (230, 89604), (262, 78660), (276, 74670), (285, 72312), (342, 60260), (345, 59736), (360, 57247), (380, 54234), (393, 52440), (414, 49780), (437, 47160), (456, 45195), (460, 44802), (524, 39330), (552, 37335), (570, 36156), (655, 31464), (684, 30130), (690, 29868), (760, 27117), (786, 26220), (828, 24890), (855, 24104), (874, 23580), (920, 22401), (1035, 19912), (1048, 19665), (1140, 18078), (1179, 17480), (1310, 15732), (1311, 15720), (1368, 15065), (1380, 14934), (1572, 13110), (1656, 12445), (1710, 12052), (1748, 11790), (1965, 10488), (2070, 9956), (2185, 9432), (2280, 9039), (2358, 8740), (2489, 8280), (2620, 7866), (2622, 7860), (2760, 7467), (3013, 6840), (3144, 6555), (3420, 6026), (3496, 5895), (3930, 5244), (3933, 5240), (4140, 4978), (4370, 4716)]