640819440

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{890027}}^1$

素因数の和:890046

約数の個数: 60

約数和(自身を含む): 2152087704

約数和(自身を除く): 1511268264

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, 720, 890027, 1780054, 2670081, 3560108, 4450135, 5340162, 7120216, 8010243, 8900270, 10680324, 13350405, 14240432, 16020486, 17800540, 21360648, 26700810, 32040972, 35601080, 40051215, 42721296, 53401620, 64081944, 71202160, 80102430, 106803240, 128163888, 160204860, 213606480, 320409720, 640819440]

約数ペア:

[(1, 640819440), (2, 320409720), (3, 213606480), (4, 160204860), (5, 128163888), (6, 106803240), (8, 80102430), (9, 71202160), (10, 64081944), (12, 53401620), (15, 42721296), (16, 40051215), (18, 35601080), (20, 32040972), (24, 26700810), (30, 21360648), (36, 17800540), (40, 16020486), (45, 14240432), (48, 13350405), (60, 10680324), (72, 8900270), (80, 8010243), (90, 7120216), (120, 5340162), (144, 4450135), (180, 3560108), (240, 2670081), (360, 1780054), (720, 890027)]