1421420

素因数分解:

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

素因数の和:111

約数の個数: 96

約数和(自身を含む): 4064256

約数和(自身を除く): 2642836

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, 182, 220, 260, 284, 286, 308, 355, 364, 385, 455, 497, 572, 710, 715, 770, 781, 910, 923, 994, 1001, 1420, 1430, 1540, 1562, 1820, 1846, 1988, 2002, 2485, 2860, 3124, 3692, 3905, 4004, 4615, 4970, 5005, 5467, 6461, 7810, 9230, 9940, 10010, 10153, 10934, 12922, 15620, 18460, 20020, 20306, 21868, 25844, 27335, 32305, 40612, 50765, 54670, 64610, 71071, 101530, 109340, 129220, 142142, 203060, 284284, 355355, 710710, 1421420]

約数ペア:

[(1, 1421420), (2, 710710), (4, 355355), (5, 284284), (7, 203060), (10, 142142), (11, 129220), (13, 109340), (14, 101530), (20, 71071), (22, 64610), (26, 54670), (28, 50765), (35, 40612), (44, 32305), (52, 27335), (55, 25844), (65, 21868), (70, 20306), (71, 20020), (77, 18460), (91, 15620), (110, 12922), (130, 10934), (140, 10153), (142, 10010), (143, 9940), (154, 9230), (182, 7810), (220, 6461), (260, 5467), (284, 5005), (286, 4970), (308, 4615), (355, 4004), (364, 3905), (385, 3692), (455, 3124), (497, 2860), (572, 2485), (710, 2002), (715, 1988), (770, 1846), (781, 1820), (910, 1562), (923, 1540), (994, 1430), (1001, 1420)]