20131440

素因数分解:

$2^4\times 3^1\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{521}}^1$

素因数の和:567

約数の個数: 160

約数和(自身を含む): 74566656

約数和(自身を除く): 54435216

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 23, 24, 28, 30, 35, 40, 42, 46, 48, 56, 60, 69, 70, 80, 84, 92, 105, 112, 115, 120, 138, 140, 161, 168, 184, 210, 230, 240, 276, 280, 322, 336, 345, 368, 420, 460, 483, 521, 552, 560, 644, 690, 805, 840, 920, 966, 1042, 1104, 1288, 1380, 1563, 1610, 1680, 1840, 1932, 2084, 2415, 2576, 2605, 2760, 3126, 3220, 3647, 3864, 4168, 4830, 5210, 5520, 6252, 6440, 7294, 7728, 7815, 8336, 9660, 10420, 10941, 11983, 12504, 12880, 14588, 15630, 18235, 19320, 20840, 21882, 23966, 25008, 29176, 31260, 35949, 36470, 38640, 41680, 43764, 47932, 54705, 58352, 59915, 62520, 71898, 72940, 83881, 87528, 95864, 109410, 119830, 125040, 143796, 145880, 167762, 175056, 179745, 191728, 218820, 239660, 251643, 287592, 291760, 335524, 359490, 419405, 437640, 479320, 503286, 575184, 671048, 718980, 838810, 875280, 958640, 1006572, 1258215, 1342096, 1437960, 1677620, 2013144, 2516430, 2875920, 3355240, 4026288, 5032860, 6710480, 10065720, 20131440]

約数ペア:

[(1, 20131440), (2, 10065720), (3, 6710480), (4, 5032860), (5, 4026288), (6, 3355240), (7, 2875920), (8, 2516430), (10, 2013144), (12, 1677620), (14, 1437960), (15, 1342096), (16, 1258215), (20, 1006572), (21, 958640), (23, 875280), (24, 838810), (28, 718980), (30, 671048), (35, 575184), (40, 503286), (42, 479320), (46, 437640), (48, 419405), (56, 359490), (60, 335524), (69, 291760), (70, 287592), (80, 251643), (84, 239660), (92, 218820), (105, 191728), (112, 179745), (115, 175056), (120, 167762), (138, 145880), (140, 143796), (161, 125040), (168, 119830), (184, 109410), (210, 95864), (230, 87528), (240, 83881), (276, 72940), (280, 71898), (322, 62520), (336, 59915), (345, 58352), (368, 54705), (420, 47932), (460, 43764), (483, 41680), (521, 38640), (552, 36470), (560, 35949), (644, 31260), (690, 29176), (805, 25008), (840, 23966), (920, 21882), (966, 20840), (1042, 19320), (1104, 18235), (1288, 15630), (1380, 14588), (1563, 12880), (1610, 12504), (1680, 11983), (1840, 10941), (1932, 10420), (2084, 9660), (2415, 8336), (2576, 7815), (2605, 7728), (2760, 7294), (3126, 6440), (3220, 6252), (3647, 5520), (3864, 5210), (4168, 4830)]