20848100

素因数分解:

$2^2\times 5^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{79}}^1$

素因数の和:142

約数の個数: 144

約数和(自身を含む): 58329600

約数和(自身を除く): 37481500

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 20, 25, 26, 28, 29, 35, 50, 52, 58, 65, 70, 79, 91, 100, 116, 130, 140, 145, 158, 175, 182, 203, 260, 290, 316, 325, 350, 364, 377, 395, 406, 455, 553, 580, 650, 700, 725, 754, 790, 812, 910, 1015, 1027, 1106, 1300, 1450, 1508, 1580, 1820, 1885, 1975, 2030, 2054, 2212, 2275, 2291, 2639, 2765, 2900, 3770, 3950, 4060, 4108, 4550, 4582, 5075, 5135, 5278, 5530, 7189, 7540, 7900, 9100, 9164, 9425, 10150, 10270, 10556, 11060, 11455, 13195, 13825, 14378, 16037, 18850, 20300, 20540, 22910, 25675, 26390, 27650, 28756, 29783, 32074, 35945, 37700, 45820, 51350, 52780, 55300, 57275, 59566, 64148, 65975, 71890, 80185, 102700, 114550, 119132, 131950, 143780, 148915, 160370, 179725, 208481, 229100, 263900, 297830, 320740, 359450, 400925, 416962, 595660, 718900, 744575, 801850, 833924, 1042405, 1489150, 1603700, 2084810, 2978300, 4169620, 5212025, 10424050, 20848100]

約数ペア:

[(1, 20848100), (2, 10424050), (4, 5212025), (5, 4169620), (7, 2978300), (10, 2084810), (13, 1603700), (14, 1489150), (20, 1042405), (25, 833924), (26, 801850), (28, 744575), (29, 718900), (35, 595660), (50, 416962), (52, 400925), (58, 359450), (65, 320740), (70, 297830), (79, 263900), (91, 229100), (100, 208481), (116, 179725), (130, 160370), (140, 148915), (145, 143780), (158, 131950), (175, 119132), (182, 114550), (203, 102700), (260, 80185), (290, 71890), (316, 65975), (325, 64148), (350, 59566), (364, 57275), (377, 55300), (395, 52780), (406, 51350), (455, 45820), (553, 37700), (580, 35945), (650, 32074), (700, 29783), (725, 28756), (754, 27650), (790, 26390), (812, 25675), (910, 22910), (1015, 20540), (1027, 20300), (1106, 18850), (1300, 16037), (1450, 14378), (1508, 13825), (1580, 13195), (1820, 11455), (1885, 11060), (1975, 10556), (2030, 10270), (2054, 10150), (2212, 9425), (2275, 9164), (2291, 9100), (2639, 7900), (2765, 7540), (2900, 7189), (3770, 5530), (3950, 5278), (4060, 5135), (4108, 5075), (4550, 4582)]