280751380

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{22037}}^1$

素因数の和:22073

約数の個数: 72

約数和(自身を含む): 738625608

約数和(自身を除く): 457874228

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 20, 26, 28, 35, 49, 52, 65, 70, 91, 98, 130, 140, 182, 196, 245, 260, 364, 455, 490, 637, 910, 980, 1274, 1820, 2548, 3185, 6370, 12740, 22037, 44074, 88148, 110185, 154259, 220370, 286481, 308518, 440740, 572962, 617036, 771295, 1079813, 1145924, 1432405, 1542590, 2005367, 2159626, 2864810, 3085180, 4010734, 4319252, 5399065, 5729620, 8021468, 10026835, 10798130, 14037569, 20053670, 21596260, 28075138, 40107340, 56150276, 70187845, 140375690, 280751380]

約数ペア:

[(1, 280751380), (2, 140375690), (4, 70187845), (5, 56150276), (7, 40107340), (10, 28075138), (13, 21596260), (14, 20053670), (20, 14037569), (26, 10798130), (28, 10026835), (35, 8021468), (49, 5729620), (52, 5399065), (65, 4319252), (70, 4010734), (91, 3085180), (98, 2864810), (130, 2159626), (140, 2005367), (182, 1542590), (196, 1432405), (245, 1145924), (260, 1079813), (364, 771295), (455, 617036), (490, 572962), (637, 440740), (910, 308518), (980, 286481), (1274, 220370), (1820, 154259), (2548, 110185), (3185, 88148), (6370, 44074), (12740, 22037)]