391511520

素因数分解:

$2^5\times 3^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{11821}}^1$

素因数の和:11865

約数の個数: 144

約数和(自身を含む): 1394239392

約数和(自身を除く): 1002727872

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 23, 24, 30, 32, 36, 40, 45, 46, 48, 60, 69, 72, 80, 90, 92, 96, 115, 120, 138, 144, 160, 180, 184, 207, 230, 240, 276, 288, 345, 360, 368, 414, 460, 480, 552, 690, 720, 736, 828, 920, 1035, 1104, 1380, 1440, 1656, 1840, 2070, 2208, 2760, 3312, 3680, 4140, 5520, 6624, 8280, 11040, 11821, 16560, 23642, 33120, 35463, 47284, 59105, 70926, 94568, 106389, 118210, 141852, 177315, 189136, 212778, 236420, 271883, 283704, 354630, 378272, 425556, 472840, 531945, 543766, 567408, 709260, 815649, 851112, 945680, 1063890, 1087532, 1134816, 1359415, 1418520, 1631298, 1702224, 1891360, 2127780, 2175064, 2446947, 2718830, 2837040, 3262596, 3404448, 4078245, 4255560, 4350128, 4893894, 5437660, 5674080, 6525192, 8156490, 8511120, 8700256, 9787788, 10875320, 12234735, 13050384, 16312980, 17022240, 19575576, 21750640, 24469470, 26100768, 32625960, 39151152, 43501280, 48938940, 65251920, 78302304, 97877880, 130503840, 195755760, 391511520]

約数ペア:

[(1, 391511520), (2, 195755760), (3, 130503840), (4, 97877880), (5, 78302304), (6, 65251920), (8, 48938940), (9, 43501280), (10, 39151152), (12, 32625960), (15, 26100768), (16, 24469470), (18, 21750640), (20, 19575576), (23, 17022240), (24, 16312980), (30, 13050384), (32, 12234735), (36, 10875320), (40, 9787788), (45, 8700256), (46, 8511120), (48, 8156490), (60, 6525192), (69, 5674080), (72, 5437660), (80, 4893894), (90, 4350128), (92, 4255560), (96, 4078245), (115, 3404448), (120, 3262596), (138, 2837040), (144, 2718830), (160, 2446947), (180, 2175064), (184, 2127780), (207, 1891360), (230, 1702224), (240, 1631298), (276, 1418520), (288, 1359415), (345, 1134816), (360, 1087532), (368, 1063890), (414, 945680), (460, 851112), (480, 815649), (552, 709260), (690, 567408), (720, 543766), (736, 531945), (828, 472840), (920, 425556), (1035, 378272), (1104, 354630), (1380, 283704), (1440, 271883), (1656, 236420), (1840, 212778), (2070, 189136), (2208, 177315), (2760, 141852), (3312, 118210), (3680, 106389), (4140, 94568), (5520, 70926), (6624, 59105), (8280, 47284), (11040, 35463), (11821, 33120), (16560, 23642)]