400002480

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{431}}^1\times {\mathrm{1289}}^1$

素因数の和:1739

約数の個数: 120

約数和(自身を含む): 1347503040

約数和(自身を除く): 947500560

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 36, 40, 45, 48, 60, 72, 80, 90, 120, 144, 180, 240, 360, 431, 720, 862, 1289, 1293, 1724, 2155, 2578, 2586, 3448, 3867, 3879, 4310, 5156, 5172, 6445, 6465, 6896, 7734, 7758, 8620, 10312, 10344, 11601, 12890, 12930, 15468, 15516, 17240, 19335, 19395, 20624, 20688, 23202, 25780, 25860, 30936, 31032, 34480, 38670, 38790, 46404, 51560, 51720, 58005, 61872, 62064, 77340, 77580, 92808, 103120, 103440, 116010, 154680, 155160, 185616, 232020, 309360, 310320, 464040, 555559, 928080, 1111118, 1666677, 2222236, 2777795, 3333354, 4444472, 5000031, 5555590, 6666708, 8333385, 8888944, 10000062, 11111180, 13333416, 16666770, 20000124, 22222360, 25000155, 26666832, 33333540, 40000248, 44444720, 50000310, 66667080, 80000496, 100000620, 133334160, 200001240, 400002480]

約数ペア:

[(1, 400002480), (2, 200001240), (3, 133334160), (4, 100000620), (5, 80000496), (6, 66667080), (8, 50000310), (9, 44444720), (10, 40000248), (12, 33333540), (15, 26666832), (16, 25000155), (18, 22222360), (20, 20000124), (24, 16666770), (30, 13333416), (36, 11111180), (40, 10000062), (45, 8888944), (48, 8333385), (60, 6666708), (72, 5555590), (80, 5000031), (90, 4444472), (120, 3333354), (144, 2777795), (180, 2222236), (240, 1666677), (360, 1111118), (431, 928080), (720, 555559), (862, 464040), (1289, 310320), (1293, 309360), (1724, 232020), (2155, 185616), (2578, 155160), (2586, 154680), (3448, 116010), (3867, 103440), (3879, 103120), (4310, 92808), (5156, 77580), (5172, 77340), (6445, 62064), (6465, 61872), (6896, 58005), (7734, 51720), (7758, 51560), (8620, 46404), (10312, 38790), (10344, 38670), (11601, 34480), (12890, 31032), (12930, 30936), (15468, 25860), (15516, 25780), (17240, 23202), (19335, 20688), (19395, 20624)]