1977182480

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{8761}}^1$

素因数の和:8825

約数の個数: 160

約数和(自身を含む): 5840959488

約数和(自身を除く): 3863777008

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 16, 20, 26, 28, 31, 35, 40, 52, 56, 62, 65, 70, 80, 91, 104, 112, 124, 130, 140, 155, 182, 208, 217, 248, 260, 280, 310, 364, 403, 434, 455, 496, 520, 560, 620, 728, 806, 868, 910, 1040, 1085, 1240, 1456, 1612, 1736, 1820, 2015, 2170, 2480, 2821, 3224, 3472, 3640, 4030, 4340, 5642, 6448, 7280, 8060, 8680, 8761, 11284, 14105, 16120, 17360, 17522, 22568, 28210, 32240, 35044, 43805, 45136, 56420, 61327, 70088, 87610, 112840, 113893, 122654, 140176, 175220, 225680, 227786, 245308, 271591, 306635, 350440, 455572, 490616, 543182, 569465, 613270, 700880, 797251, 911144, 981232, 1086364, 1138930, 1226540, 1357955, 1594502, 1822288, 1901137, 2172728, 2277860, 2453080, 2715910, 3189004, 3530683, 3802274, 3986255, 4345456, 4555720, 4906160, 5431820, 6378008, 7061366, 7604548, 7972510, 9111440, 9505685, 10863640, 12756016, 14122732, 15209096, 15945020, 17653415, 19011370, 21727280, 24714781, 28245464, 30418192, 31890040, 35306830, 38022740, 49429562, 56490928, 63780080, 70613660, 76045480, 98859124, 123573905, 141227320, 152090960, 197718248, 247147810, 282454640, 395436496, 494295620, 988591240, 1977182480]

約数ペア:

[(1, 1977182480), (2, 988591240), (4, 494295620), (5, 395436496), (7, 282454640), (8, 247147810), (10, 197718248), (13, 152090960), (14, 141227320), (16, 123573905), (20, 98859124), (26, 76045480), (28, 70613660), (31, 63780080), (35, 56490928), (40, 49429562), (52, 38022740), (56, 35306830), (62, 31890040), (65, 30418192), (70, 28245464), (80, 24714781), (91, 21727280), (104, 19011370), (112, 17653415), (124, 15945020), (130, 15209096), (140, 14122732), (155, 12756016), (182, 10863640), (208, 9505685), (217, 9111440), (248, 7972510), (260, 7604548), (280, 7061366), (310, 6378008), (364, 5431820), (403, 4906160), (434, 4555720), (455, 4345456), (496, 3986255), (520, 3802274), (560, 3530683), (620, 3189004), (728, 2715910), (806, 2453080), (868, 2277860), (910, 2172728), (1040, 1901137), (1085, 1822288), (1240, 1594502), (1456, 1357955), (1612, 1226540), (1736, 1138930), (1820, 1086364), (2015, 981232), (2170, 911144), (2480, 797251), (2821, 700880), (3224, 613270), (3472, 569465), (3640, 543182), (4030, 490616), (4340, 455572), (5642, 350440), (6448, 306635), (7280, 271591), (8060, 245308), (8680, 227786), (8761, 225680), (11284, 175220), (14105, 140176), (16120, 122654), (17360, 113893), (17522, 112840), (22568, 87610), (28210, 70088), (32240, 61327), (35044, 56420), (43805, 45136)]