1389487960

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{359}}^1\times {\mathrm{601}}^1$

素因数の和:1001

約数の個数: 128

約数和(自身を含む): 3744921600

約数和(自身を除く): 2355433640

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 23, 28, 35, 40, 46, 56, 70, 92, 115, 140, 161, 184, 230, 280, 322, 359, 460, 601, 644, 718, 805, 920, 1202, 1288, 1436, 1610, 1795, 2404, 2513, 2872, 3005, 3220, 3590, 4207, 4808, 5026, 6010, 6440, 7180, 8257, 8414, 10052, 12020, 12565, 13823, 14360, 16514, 16828, 20104, 21035, 24040, 25130, 27646, 33028, 33656, 41285, 42070, 50260, 55292, 57799, 66056, 69115, 82570, 84140, 96761, 100520, 110584, 115598, 138230, 165140, 168280, 193522, 215759, 231196, 276460, 288995, 330280, 387044, 431518, 462392, 483805, 552920, 577990, 774088, 863036, 967610, 1078795, 1155980, 1510313, 1726072, 1935220, 2157590, 2311960, 3020626, 3870440, 4315180, 4962457, 6041252, 7551565, 8630360, 9924914, 12082504, 15103130, 19849828, 24812285, 30206260, 34737199, 39699656, 49624570, 60412520, 69474398, 99249140, 138948796, 173685995, 198498280, 277897592, 347371990, 694743980, 1389487960]

約数ペア:

[(1, 1389487960), (2, 694743980), (4, 347371990), (5, 277897592), (7, 198498280), (8, 173685995), (10, 138948796), (14, 99249140), (20, 69474398), (23, 60412520), (28, 49624570), (35, 39699656), (40, 34737199), (46, 30206260), (56, 24812285), (70, 19849828), (92, 15103130), (115, 12082504), (140, 9924914), (161, 8630360), (184, 7551565), (230, 6041252), (280, 4962457), (322, 4315180), (359, 3870440), (460, 3020626), (601, 2311960), (644, 2157590), (718, 1935220), (805, 1726072), (920, 1510313), (1202, 1155980), (1288, 1078795), (1436, 967610), (1610, 863036), (1795, 774088), (2404, 577990), (2513, 552920), (2872, 483805), (3005, 462392), (3220, 431518), (3590, 387044), (4207, 330280), (4808, 288995), (5026, 276460), (6010, 231196), (6440, 215759), (7180, 193522), (8257, 168280), (8414, 165140), (10052, 138230), (12020, 115598), (12565, 110584), (13823, 100520), (14360, 96761), (16514, 84140), (16828, 82570), (20104, 69115), (21035, 66056), (24040, 57799), (25130, 55292), (27646, 50260), (33028, 42070), (33656, 41285)]