12780720

素因数分解:

$2^4\times 3^3\times 5^1\times {\mathrm{61}}^1\times {\mathrm{97}}^1$

素因数の和:180

約数の個数: 160

約数和(自身を含む): 45205440

約数和(自身を除く): 32424720

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 27, 30, 36, 40, 45, 48, 54, 60, 61, 72, 80, 90, 97, 108, 120, 122, 135, 144, 180, 183, 194, 216, 240, 244, 270, 291, 305, 360, 366, 388, 432, 485, 488, 540, 549, 582, 610, 720, 732, 776, 873, 915, 970, 976, 1080, 1098, 1164, 1220, 1455, 1464, 1552, 1647, 1746, 1830, 1940, 2160, 2196, 2328, 2440, 2619, 2745, 2910, 2928, 3294, 3492, 3660, 3880, 4365, 4392, 4656, 4880, 5238, 5490, 5820, 5917, 6588, 6984, 7320, 7760, 8235, 8730, 8784, 10476, 10980, 11640, 11834, 13095, 13176, 13968, 14640, 16470, 17460, 17751, 20952, 21960, 23280, 23668, 26190, 26352, 29585, 32940, 34920, 35502, 41904, 43920, 47336, 52380, 53253, 59170, 65880, 69840, 71004, 88755, 94672, 104760, 106506, 118340, 131760, 142008, 159759, 177510, 209520, 213012, 236680, 266265, 284016, 319518, 355020, 426024, 473360, 532530, 639036, 710040, 798795, 852048, 1065060, 1278072, 1420080, 1597590, 2130120, 2556144, 3195180, 4260240, 6390360, 12780720]

約数ペア:

[(1, 12780720), (2, 6390360), (3, 4260240), (4, 3195180), (5, 2556144), (6, 2130120), (8, 1597590), (9, 1420080), (10, 1278072), (12, 1065060), (15, 852048), (16, 798795), (18, 710040), (20, 639036), (24, 532530), (27, 473360), (30, 426024), (36, 355020), (40, 319518), (45, 284016), (48, 266265), (54, 236680), (60, 213012), (61, 209520), (72, 177510), (80, 159759), (90, 142008), (97, 131760), (108, 118340), (120, 106506), (122, 104760), (135, 94672), (144, 88755), (180, 71004), (183, 69840), (194, 65880), (216, 59170), (240, 53253), (244, 52380), (270, 47336), (291, 43920), (305, 41904), (360, 35502), (366, 34920), (388, 32940), (432, 29585), (485, 26352), (488, 26190), (540, 23668), (549, 23280), (582, 21960), (610, 20952), (720, 17751), (732, 17460), (776, 16470), (873, 14640), (915, 13968), (970, 13176), (976, 13095), (1080, 11834), (1098, 11640), (1164, 10980), (1220, 10476), (1455, 8784), (1464, 8730), (1552, 8235), (1647, 7760), (1746, 7320), (1830, 6984), (1940, 6588), (2160, 5917), (2196, 5820), (2328, 5490), (2440, 5238), (2619, 4880), (2745, 4656), (2910, 4392), (2928, 4365), (3294, 3880), (3492, 3660)]