68778990

素因数分解:

$2^1\times 3^3\times 5^1\times 7^1\times {\mathrm{151}}^1\times {\mathrm{241}}^1$

素因数の和:415

約数の個数: 128

約数和(自身を含む): 211875840

約数和(自身を除く): 143096850

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 14, 15, 18, 21, 27, 30, 35, 42, 45, 54, 63, 70, 90, 105, 126, 135, 151, 189, 210, 241, 270, 302, 315, 378, 453, 482, 630, 723, 755, 906, 945, 1057, 1205, 1359, 1446, 1510, 1687, 1890, 2114, 2169, 2265, 2410, 2718, 3171, 3374, 3615, 4077, 4338, 4530, 5061, 5285, 6342, 6507, 6795, 7230, 8154, 8435, 9513, 10122, 10570, 10845, 13014, 13590, 15183, 15855, 16870, 19026, 20385, 21690, 25305, 28539, 30366, 31710, 32535, 36391, 40770, 45549, 47565, 50610, 57078, 65070, 72782, 75915, 91098, 95130, 109173, 142695, 151830, 181955, 218346, 227745, 254737, 285390, 327519, 363910, 455490, 509474, 545865, 655038, 764211, 982557, 1091730, 1273685, 1528422, 1637595, 1965114, 2292633, 2547370, 3275190, 3821055, 4585266, 4912785, 6877899, 7642110, 9825570, 11463165, 13755798, 22926330, 34389495, 68778990]

約数ペア:

[(1, 68778990), (2, 34389495), (3, 22926330), (5, 13755798), (6, 11463165), (7, 9825570), (9, 7642110), (10, 6877899), (14, 4912785), (15, 4585266), (18, 3821055), (21, 3275190), (27, 2547370), (30, 2292633), (35, 1965114), (42, 1637595), (45, 1528422), (54, 1273685), (63, 1091730), (70, 982557), (90, 764211), (105, 655038), (126, 545865), (135, 509474), (151, 455490), (189, 363910), (210, 327519), (241, 285390), (270, 254737), (302, 227745), (315, 218346), (378, 181955), (453, 151830), (482, 142695), (630, 109173), (723, 95130), (755, 91098), (906, 75915), (945, 72782), (1057, 65070), (1205, 57078), (1359, 50610), (1446, 47565), (1510, 45549), (1687, 40770), (1890, 36391), (2114, 32535), (2169, 31710), (2265, 30366), (2410, 28539), (2718, 25305), (3171, 21690), (3374, 20385), (3615, 19026), (4077, 16870), (4338, 15855), (4530, 15183), (5061, 13590), (5285, 13014), (6342, 10845), (6507, 10570), (6795, 10122), (7230, 9513), (8154, 8435)]