664548780

素因数分解:

$2^2\times 3^1\times 5^1\times 7^5\times {\mathrm{659}}^1$

素因数の和:706

約数の個数: 144

約数和(自身を含む): 2174135040

約数和(自身を除く): 1509586260

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 49, 60, 70, 84, 98, 105, 140, 147, 196, 210, 245, 294, 343, 420, 490, 588, 659, 686, 735, 980, 1029, 1318, 1372, 1470, 1715, 1977, 2058, 2401, 2636, 2940, 3295, 3430, 3954, 4116, 4613, 4802, 5145, 6590, 6860, 7203, 7908, 9226, 9604, 9885, 10290, 12005, 13180, 13839, 14406, 16807, 18452, 19770, 20580, 23065, 24010, 27678, 28812, 32291, 33614, 36015, 39540, 46130, 48020, 50421, 55356, 64582, 67228, 69195, 72030, 84035, 92260, 96873, 100842, 129164, 138390, 144060, 161455, 168070, 193746, 201684, 226037, 252105, 276780, 322910, 336140, 387492, 452074, 484365, 504210, 645820, 678111, 904148, 968730, 1008420, 1130185, 1356222, 1582259, 1937460, 2260370, 2712444, 3164518, 3390555, 4520740, 4746777, 6329036, 6781110, 7911295, 9493554, 11075813, 13562220, 15822590, 18987108, 22151626, 23733885, 31645180, 33227439, 44303252, 47467770, 55379065, 66454878, 94935540, 110758130, 132909756, 166137195, 221516260, 332274390, 664548780]

約数ペア:

[(1, 664548780), (2, 332274390), (3, 221516260), (4, 166137195), (5, 132909756), (6, 110758130), (7, 94935540), (10, 66454878), (12, 55379065), (14, 47467770), (15, 44303252), (20, 33227439), (21, 31645180), (28, 23733885), (30, 22151626), (35, 18987108), (42, 15822590), (49, 13562220), (60, 11075813), (70, 9493554), (84, 7911295), (98, 6781110), (105, 6329036), (140, 4746777), (147, 4520740), (196, 3390555), (210, 3164518), (245, 2712444), (294, 2260370), (343, 1937460), (420, 1582259), (490, 1356222), (588, 1130185), (659, 1008420), (686, 968730), (735, 904148), (980, 678111), (1029, 645820), (1318, 504210), (1372, 484365), (1470, 452074), (1715, 387492), (1977, 336140), (2058, 322910), (2401, 276780), (2636, 252105), (2940, 226037), (3295, 201684), (3430, 193746), (3954, 168070), (4116, 161455), (4613, 144060), (4802, 138390), (5145, 129164), (6590, 100842), (6860, 96873), (7203, 92260), (7908, 84035), (9226, 72030), (9604, 69195), (9885, 67228), (10290, 64582), (12005, 55356), (13180, 50421), (13839, 48020), (14406, 46130), (16807, 39540), (18452, 36015), (19770, 33614), (20580, 32291), (23065, 28812), (24010, 27678)]