261981120

素因数分解:

$2^6\times 3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{53}}^1\times {\mathrm{271}}^1$

素因数の和:363

約数の個数: 224

約数和(自身を含む): 895380480

約数和(自身を除く): 633399360

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 19, 20, 24, 30, 32, 38, 40, 48, 53, 57, 60, 64, 76, 80, 95, 96, 106, 114, 120, 152, 159, 160, 190, 192, 212, 228, 240, 265, 271, 285, 304, 318, 320, 380, 424, 456, 480, 530, 542, 570, 608, 636, 760, 795, 813, 848, 912, 960, 1007, 1060, 1084, 1140, 1216, 1272, 1355, 1520, 1590, 1626, 1696, 1824, 2014, 2120, 2168, 2280, 2544, 2710, 3021, 3040, 3180, 3252, 3392, 3648, 4028, 4065, 4240, 4336, 4560, 5035, 5088, 5149, 5420, 6042, 6080, 6360, 6504, 8056, 8130, 8480, 8672, 9120, 10070, 10176, 10298, 10840, 12084, 12720, 13008, 14363, 15105, 15447, 16112, 16260, 16960, 17344, 18240, 20140, 20596, 21680, 24168, 25440, 25745, 26016, 28726, 30210, 30894, 32224, 32520, 40280, 41192, 43089, 43360, 48336, 50880, 51490, 52032, 57452, 60420, 61788, 64448, 65040, 71815, 77235, 80560, 82384, 86178, 86720, 96672, 102980, 114904, 120840, 123576, 130080, 143630, 154470, 161120, 164768, 172356, 193344, 205960, 215445, 229808, 241680, 247152, 260160, 272897, 287260, 308940, 322240, 329536, 344712, 411920, 430890, 459616, 483360, 494304, 545794, 574520, 617880, 689424, 818691, 823840, 861780, 919232, 966720, 988608, 1091588, 1149040, 1235760, 1364485, 1378848, 1637382, 1647680, 1723560, 2183176, 2298080, 2471520, 2728970, 2757696, 3274764, 3447120, 4093455, 4366352, 4596160, 4943040, 5457940, 6549528, 6894240, 8186910, 8732704, 10915880, 13099056, 13788480, 16373820, 17465408, 21831760, 26198112, 32747640, 43663520, 52396224, 65495280, 87327040, 130990560, 261981120]

約数ペア:

[(1, 261981120), (2, 130990560), (3, 87327040), (4, 65495280), (5, 52396224), (6, 43663520), (8, 32747640), (10, 26198112), (12, 21831760), (15, 17465408), (16, 16373820), (19, 13788480), (20, 13099056), (24, 10915880), (30, 8732704), (32, 8186910), (38, 6894240), (40, 6549528), (48, 5457940), (53, 4943040), (57, 4596160), (60, 4366352), (64, 4093455), (76, 3447120), (80, 3274764), (95, 2757696), (96, 2728970), (106, 2471520), (114, 2298080), (120, 2183176), (152, 1723560), (159, 1647680), (160, 1637382), (190, 1378848), (192, 1364485), (212, 1235760), (228, 1149040), (240, 1091588), (265, 988608), (271, 966720), (285, 919232), (304, 861780), (318, 823840), (320, 818691), (380, 689424), (424, 617880), (456, 574520), (480, 545794), (530, 494304), (542, 483360), (570, 459616), (608, 430890), (636, 411920), (760, 344712), (795, 329536), (813, 322240), (848, 308940), (912, 287260), (960, 272897), (1007, 260160), (1060, 247152), (1084, 241680), (1140, 229808), (1216, 215445), (1272, 205960), (1355, 193344), (1520, 172356), (1590, 164768), (1626, 161120), (1696, 154470), (1824, 143630), (2014, 130080), (2120, 123576), (2168, 120840), (2280, 114904), (2544, 102980), (2710, 96672), (3021, 86720), (3040, 86178), (3180, 82384), (3252, 80560), (3392, 77235), (3648, 71815), (4028, 65040), (4065, 64448), (4240, 61788), (4336, 60420), (4560, 57452), (5035, 52032), (5088, 51490), (5149, 50880), (5420, 48336), (6042, 43360), (6080, 43089), (6360, 41192), (6504, 40280), (8056, 32520), (8130, 32224), (8480, 30894), (8672, 30210), (9120, 28726), (10070, 26016), (10176, 25745), (10298, 25440), (10840, 24168), (12084, 21680), (12720, 20596), (13008, 20140), (14363, 18240), (15105, 17344), (15447, 16960), (16112, 16260)]