278123580

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{307}}^1\times {\mathrm{719}}^1$

素因数の和:1048

約数の個数: 144

約数和(自身を含む): 968647680

約数和(自身を除く): 690524100

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 35, 36, 42, 45, 60, 63, 70, 84, 90, 105, 126, 140, 180, 210, 252, 307, 315, 420, 614, 630, 719, 921, 1228, 1260, 1438, 1535, 1842, 2149, 2157, 2763, 2876, 3070, 3595, 3684, 4298, 4314, 4605, 5033, 5526, 6140, 6447, 6471, 7190, 8596, 8628, 9210, 10066, 10745, 10785, 11052, 12894, 12942, 13815, 14380, 15099, 18420, 19341, 20132, 21490, 21570, 25165, 25788, 25884, 27630, 30198, 32235, 32355, 38682, 42980, 43140, 45297, 50330, 55260, 60396, 64470, 64710, 75495, 77364, 90594, 96705, 100660, 128940, 129420, 150990, 181188, 193410, 220733, 226485, 301980, 386820, 441466, 452970, 662199, 882932, 905940, 1103665, 1324398, 1545131, 1986597, 2207330, 2648796, 3090262, 3310995, 3973194, 4414660, 4635393, 6180524, 6621990, 7725655, 7946388, 9270786, 9932985, 13243980, 13906179, 15451310, 18541572, 19865970, 23176965, 27812358, 30902620, 39731940, 46353930, 55624716, 69530895, 92707860, 139061790, 278123580]

約数ペア:

[(1, 278123580), (2, 139061790), (3, 92707860), (4, 69530895), (5, 55624716), (6, 46353930), (7, 39731940), (9, 30902620), (10, 27812358), (12, 23176965), (14, 19865970), (15, 18541572), (18, 15451310), (20, 13906179), (21, 13243980), (28, 9932985), (30, 9270786), (35, 7946388), (36, 7725655), (42, 6621990), (45, 6180524), (60, 4635393), (63, 4414660), (70, 3973194), (84, 3310995), (90, 3090262), (105, 2648796), (126, 2207330), (140, 1986597), (180, 1545131), (210, 1324398), (252, 1103665), (307, 905940), (315, 882932), (420, 662199), (614, 452970), (630, 441466), (719, 386820), (921, 301980), (1228, 226485), (1260, 220733), (1438, 193410), (1535, 181188), (1842, 150990), (2149, 129420), (2157, 128940), (2763, 100660), (2876, 96705), (3070, 90594), (3595, 77364), (3684, 75495), (4298, 64710), (4314, 64470), (4605, 60396), (5033, 55260), (5526, 50330), (6140, 45297), (6447, 43140), (6471, 42980), (7190, 38682), (8596, 32355), (8628, 32235), (9210, 30198), (10066, 27630), (10745, 25884), (10785, 25788), (11052, 25165), (12894, 21570), (12942, 21490), (13815, 20132), (14380, 19341), (15099, 18420)]