145015520

素因数分解:

$2^5\times 5^1\times {\mathrm{13}}^2\times {\mathrm{31}}^1\times {\mathrm{173}}^1$

素因数の和:245

約数の個数: 144

約数和(自身を含む): 385160832

約数和(自身を除く): 240145312

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 31, 32, 40, 52, 62, 65, 80, 104, 124, 130, 155, 160, 169, 173, 208, 248, 260, 310, 338, 346, 403, 416, 496, 520, 620, 676, 692, 806, 845, 865, 992, 1040, 1240, 1352, 1384, 1612, 1690, 1730, 2015, 2080, 2249, 2480, 2704, 2768, 3224, 3380, 3460, 4030, 4498, 4960, 5239, 5363, 5408, 5536, 6448, 6760, 6920, 8060, 8996, 10478, 10726, 11245, 12896, 13520, 13840, 16120, 17992, 20956, 21452, 22490, 26195, 26815, 27040, 27680, 29237, 32240, 35984, 41912, 42904, 44980, 52390, 53630, 58474, 64480, 69719, 71968, 83824, 85808, 89960, 104780, 107260, 116948, 139438, 146185, 167648, 171616, 179920, 209560, 214520, 233896, 278876, 292370, 348595, 359840, 419120, 429040, 467792, 557752, 584740, 697190, 838240, 858080, 906347, 935584, 1115504, 1169480, 1394380, 1812694, 2231008, 2338960, 2788760, 3625388, 4531735, 4677920, 5577520, 7250776, 9063470, 11155040, 14501552, 18126940, 29003104, 36253880, 72507760, 145015520]

約数ペア:

[(1, 145015520), (2, 72507760), (4, 36253880), (5, 29003104), (8, 18126940), (10, 14501552), (13, 11155040), (16, 9063470), (20, 7250776), (26, 5577520), (31, 4677920), (32, 4531735), (40, 3625388), (52, 2788760), (62, 2338960), (65, 2231008), (80, 1812694), (104, 1394380), (124, 1169480), (130, 1115504), (155, 935584), (160, 906347), (169, 858080), (173, 838240), (208, 697190), (248, 584740), (260, 557752), (310, 467792), (338, 429040), (346, 419120), (403, 359840), (416, 348595), (496, 292370), (520, 278876), (620, 233896), (676, 214520), (692, 209560), (806, 179920), (845, 171616), (865, 167648), (992, 146185), (1040, 139438), (1240, 116948), (1352, 107260), (1384, 104780), (1612, 89960), (1690, 85808), (1730, 83824), (2015, 71968), (2080, 69719), (2249, 64480), (2480, 58474), (2704, 53630), (2768, 52390), (3224, 44980), (3380, 42904), (3460, 41912), (4030, 35984), (4498, 32240), (4960, 29237), (5239, 27680), (5363, 27040), (5408, 26815), (5536, 26195), (6448, 22490), (6760, 21452), (6920, 20956), (8060, 17992), (8996, 16120), (10478, 13840), (10726, 13520), (11245, 12896)]