278247060

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{16987}}^1$

素因数の和:17022

約数の個数: 144

約数和(自身を含む): 1038850176

約数和(自身を除く): 760603116

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 13, 14, 15, 18, 20, 21, 26, 28, 30, 35, 36, 39, 42, 45, 52, 60, 63, 65, 70, 78, 84, 90, 91, 105, 117, 126, 130, 140, 156, 180, 182, 195, 210, 234, 252, 260, 273, 315, 364, 390, 420, 455, 468, 546, 585, 630, 780, 819, 910, 1092, 1170, 1260, 1365, 1638, 1820, 2340, 2730, 3276, 4095, 5460, 8190, 16380, 16987, 33974, 50961, 67948, 84935, 101922, 118909, 152883, 169870, 203844, 220831, 237818, 254805, 305766, 339740, 356727, 441662, 475636, 509610, 594545, 611532, 662493, 713454, 764415, 883324, 1019220, 1070181, 1104155, 1189090, 1324986, 1426908, 1528830, 1545817, 1783635, 1987479, 2140362, 2208310, 2378180, 2649972, 3057660, 3091634, 3312465, 3567270, 3974958, 4280724, 4416620, 4637451, 5350905, 6183268, 6624930, 7134540, 7729085, 7949916, 9274902, 9937395, 10701810, 13249860, 13912353, 15458170, 18549804, 19874790, 21403620, 23187255, 27824706, 30916340, 39749580, 46374510, 55649412, 69561765, 92749020, 139123530, 278247060]

約数ペア:

[(1, 278247060), (2, 139123530), (3, 92749020), (4, 69561765), (5, 55649412), (6, 46374510), (7, 39749580), (9, 30916340), (10, 27824706), (12, 23187255), (13, 21403620), (14, 19874790), (15, 18549804), (18, 15458170), (20, 13912353), (21, 13249860), (26, 10701810), (28, 9937395), (30, 9274902), (35, 7949916), (36, 7729085), (39, 7134540), (42, 6624930), (45, 6183268), (52, 5350905), (60, 4637451), (63, 4416620), (65, 4280724), (70, 3974958), (78, 3567270), (84, 3312465), (90, 3091634), (91, 3057660), (105, 2649972), (117, 2378180), (126, 2208310), (130, 2140362), (140, 1987479), (156, 1783635), (180, 1545817), (182, 1528830), (195, 1426908), (210, 1324986), (234, 1189090), (252, 1104155), (260, 1070181), (273, 1019220), (315, 883324), (364, 764415), (390, 713454), (420, 662493), (455, 611532), (468, 594545), (546, 509610), (585, 475636), (630, 441662), (780, 356727), (819, 339740), (910, 305766), (1092, 254805), (1170, 237818), (1260, 220831), (1365, 203844), (1638, 169870), (1820, 152883), (2340, 118909), (2730, 101922), (3276, 84935), (4095, 67948), (5460, 50961), (8190, 33974), (16380, 16987)]