72507760

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^2\times {\mathrm{31}}^1\times {\mathrm{173}}^1$

素因数の和:243

約数の個数: 120

約数和(自身を含む): 189523584

約数和(自身を除く): 117015824

約数列:

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

約数ペア:

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