18478460

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^2\times {\mathrm{71}}^1$

素因数の和:124

約数の個数: 144

約数和(自身を含む): 53125632

約数和(自身を除く): 34647172

約数列:

[1, 2, 4, 5, 7, 10, 11, 13, 14, 20, 22, 26, 28, 35, 44, 52, 55, 65, 70, 71, 77, 91, 110, 130, 140, 142, 143, 154, 169, 182, 220, 260, 284, 286, 308, 338, 355, 364, 385, 455, 497, 572, 676, 710, 715, 770, 781, 845, 910, 923, 994, 1001, 1183, 1420, 1430, 1540, 1562, 1690, 1820, 1846, 1859, 1988, 2002, 2366, 2485, 2860, 3124, 3380, 3692, 3718, 3905, 4004, 4615, 4732, 4970, 5005, 5467, 5915, 6461, 7436, 7810, 9230, 9295, 9940, 10010, 10153, 10934, 11830, 11999, 12922, 13013, 15620, 18460, 18590, 20020, 20306, 21868, 23660, 23998, 25844, 26026, 27335, 32305, 37180, 40612, 47996, 50765, 52052, 54670, 59995, 64610, 65065, 71071, 83993, 101530, 109340, 119990, 129220, 130130, 131989, 142142, 167986, 203060, 239980, 260260, 263978, 284284, 335972, 355355, 419965, 527956, 659945, 710710, 839930, 923923, 1319890, 1421420, 1679860, 1847846, 2639780, 3695692, 4619615, 9239230, 18478460]

約数ペア:

[(1, 18478460), (2, 9239230), (4, 4619615), (5, 3695692), (7, 2639780), (10, 1847846), (11, 1679860), (13, 1421420), (14, 1319890), (20, 923923), (22, 839930), (26, 710710), (28, 659945), (35, 527956), (44, 419965), (52, 355355), (55, 335972), (65, 284284), (70, 263978), (71, 260260), (77, 239980), (91, 203060), (110, 167986), (130, 142142), (140, 131989), (142, 130130), (143, 129220), (154, 119990), (169, 109340), (182, 101530), (220, 83993), (260, 71071), (284, 65065), (286, 64610), (308, 59995), (338, 54670), (355, 52052), (364, 50765), (385, 47996), (455, 40612), (497, 37180), (572, 32305), (676, 27335), (710, 26026), (715, 25844), (770, 23998), (781, 23660), (845, 21868), (910, 20306), (923, 20020), (994, 18590), (1001, 18460), (1183, 15620), (1420, 13013), (1430, 12922), (1540, 11999), (1562, 11830), (1690, 10934), (1820, 10153), (1846, 10010), (1859, 9940), (1988, 9295), (2002, 9230), (2366, 7810), (2485, 7436), (2860, 6461), (3124, 5915), (3380, 5467), (3692, 5005), (3718, 4970), (3905, 4732), (4004, 4615)]