9949940

素因数分解:

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

素因数の和:118

約数の個数: 144

約数和(自身を含む): 28957824

約数和(自身を除く): 19007884

約数列:

[1, 2, 4, 5, 7, 10, 11, 13, 14, 20, 22, 26, 28, 35, 44, 49, 52, 55, 65, 70, 71, 77, 91, 98, 110, 130, 140, 142, 143, 154, 182, 196, 220, 245, 260, 284, 286, 308, 355, 364, 385, 455, 490, 497, 539, 572, 637, 710, 715, 770, 781, 910, 923, 980, 994, 1001, 1078, 1274, 1420, 1430, 1540, 1562, 1820, 1846, 1988, 2002, 2156, 2485, 2548, 2695, 2860, 3124, 3185, 3479, 3692, 3905, 4004, 4615, 4970, 5005, 5390, 5467, 6370, 6461, 6958, 7007, 7810, 9230, 9940, 10010, 10153, 10780, 10934, 12740, 12922, 13916, 14014, 15620, 17395, 18460, 20020, 20306, 21868, 25844, 27335, 28028, 32305, 34790, 35035, 38269, 40612, 45227, 50765, 54670, 64610, 69580, 70070, 71071, 76538, 90454, 101530, 109340, 129220, 140140, 142142, 153076, 180908, 191345, 203060, 226135, 284284, 355355, 382690, 452270, 497497, 710710, 765380, 904540, 994994, 1421420, 1989988, 2487485, 4974970, 9949940]

約数ペア:

[(1, 9949940), (2, 4974970), (4, 2487485), (5, 1989988), (7, 1421420), (10, 994994), (11, 904540), (13, 765380), (14, 710710), (20, 497497), (22, 452270), (26, 382690), (28, 355355), (35, 284284), (44, 226135), (49, 203060), (52, 191345), (55, 180908), (65, 153076), (70, 142142), (71, 140140), (77, 129220), (91, 109340), (98, 101530), (110, 90454), (130, 76538), (140, 71071), (142, 70070), (143, 69580), (154, 64610), (182, 54670), (196, 50765), (220, 45227), (245, 40612), (260, 38269), (284, 35035), (286, 34790), (308, 32305), (355, 28028), (364, 27335), (385, 25844), (455, 21868), (490, 20306), (497, 20020), (539, 18460), (572, 17395), (637, 15620), (710, 14014), (715, 13916), (770, 12922), (781, 12740), (910, 10934), (923, 10780), (980, 10153), (994, 10010), (1001, 9940), (1078, 9230), (1274, 7810), (1420, 7007), (1430, 6958), (1540, 6461), (1562, 6370), (1820, 5467), (1846, 5390), (1988, 5005), (2002, 4970), (2156, 4615), (2485, 4004), (2548, 3905), (2695, 3692), (2860, 3479), (3124, 3185)]