20730840

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{97}}^1\times {\mathrm{137}}^1$

素因数の和:261

約数の個数: 128

約数和(自身を含む): 68160960

約数和(自身を除く): 47430120

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 20, 24, 26, 30, 39, 40, 52, 60, 65, 78, 97, 104, 120, 130, 137, 156, 194, 195, 260, 274, 291, 312, 388, 390, 411, 485, 520, 548, 582, 685, 776, 780, 822, 970, 1096, 1164, 1261, 1370, 1455, 1560, 1644, 1781, 1940, 2055, 2328, 2522, 2740, 2910, 3288, 3562, 3783, 3880, 4110, 5044, 5343, 5480, 5820, 6305, 7124, 7566, 8220, 8905, 10088, 10686, 11640, 12610, 13289, 14248, 15132, 16440, 17810, 18915, 21372, 25220, 26578, 26715, 30264, 35620, 37830, 39867, 42744, 50440, 53156, 53430, 66445, 71240, 75660, 79734, 106312, 106860, 132890, 151320, 159468, 172757, 199335, 213720, 265780, 318936, 345514, 398670, 518271, 531560, 691028, 797340, 863785, 1036542, 1382056, 1594680, 1727570, 2073084, 2591355, 3455140, 4146168, 5182710, 6910280, 10365420, 20730840]

約数ペア:

[(1, 20730840), (2, 10365420), (3, 6910280), (4, 5182710), (5, 4146168), (6, 3455140), (8, 2591355), (10, 2073084), (12, 1727570), (13, 1594680), (15, 1382056), (20, 1036542), (24, 863785), (26, 797340), (30, 691028), (39, 531560), (40, 518271), (52, 398670), (60, 345514), (65, 318936), (78, 265780), (97, 213720), (104, 199335), (120, 172757), (130, 159468), (137, 151320), (156, 132890), (194, 106860), (195, 106312), (260, 79734), (274, 75660), (291, 71240), (312, 66445), (388, 53430), (390, 53156), (411, 50440), (485, 42744), (520, 39867), (548, 37830), (582, 35620), (685, 30264), (776, 26715), (780, 26578), (822, 25220), (970, 21372), (1096, 18915), (1164, 17810), (1261, 16440), (1370, 15132), (1455, 14248), (1560, 13289), (1644, 12610), (1781, 11640), (1940, 10686), (2055, 10088), (2328, 8905), (2522, 8220), (2740, 7566), (2910, 7124), (3288, 6305), (3562, 5820), (3783, 5480), (3880, 5343), (4110, 5044)]