668800665

素因数分解:

$3^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{647}}^1$

素因数の和:724

約数の個数: 128

約数和(自身を含む): 1393459200

約数和(自身を除く): 724658535

約数列:

[1, 3, 5, 9, 13, 15, 19, 27, 31, 39, 45, 57, 65, 93, 95, 117, 135, 155, 171, 195, 247, 279, 285, 351, 403, 465, 513, 585, 589, 647, 741, 837, 855, 1209, 1235, 1395, 1755, 1767, 1941, 2015, 2223, 2565, 2945, 3235, 3627, 3705, 4185, 5301, 5823, 6045, 6669, 7657, 8411, 8835, 9705, 10881, 11115, 12293, 15903, 17469, 18135, 20057, 22971, 25233, 26505, 29115, 33345, 36879, 38285, 42055, 54405, 60171, 61465, 68913, 75699, 79515, 87345, 100285, 110637, 114855, 126165, 159809, 180513, 184395, 206739, 227097, 260741, 300855, 331911, 344565, 378495, 381083, 479427, 541539, 553185, 782223, 799045, 902565, 1033695, 1135485, 1143249, 1303705, 1438281, 1659555, 1905415, 2346669, 2397135, 2707695, 3429747, 3911115, 4314843, 4954079, 5716245, 7040007, 7191405, 10289241, 11733345, 14862237, 17148735, 21574215, 24770395, 35200035, 44586711, 51446205, 74311185, 133760133, 222933555, 668800665]

約数ペア:

[(1, 668800665), (3, 222933555), (5, 133760133), (9, 74311185), (13, 51446205), (15, 44586711), (19, 35200035), (27, 24770395), (31, 21574215), (39, 17148735), (45, 14862237), (57, 11733345), (65, 10289241), (93, 7191405), (95, 7040007), (117, 5716245), (135, 4954079), (155, 4314843), (171, 3911115), (195, 3429747), (247, 2707695), (279, 2397135), (285, 2346669), (351, 1905415), (403, 1659555), (465, 1438281), (513, 1303705), (585, 1143249), (589, 1135485), (647, 1033695), (741, 902565), (837, 799045), (855, 782223), (1209, 553185), (1235, 541539), (1395, 479427), (1755, 381083), (1767, 378495), (1941, 344565), (2015, 331911), (2223, 300855), (2565, 260741), (2945, 227097), (3235, 206739), (3627, 184395), (3705, 180513), (4185, 159809), (5301, 126165), (5823, 114855), (6045, 110637), (6669, 100285), (7657, 87345), (8411, 79515), (8835, 75699), (9705, 68913), (10881, 61465), (11115, 60171), (12293, 54405), (15903, 42055), (17469, 38285), (18135, 36879), (20057, 33345), (22971, 29115), (25233, 26505)]