388494120

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{462493}}^1$

素因数の和:462514

約数の個数: 64

約数和(自身を含む): 1331982720

約数和(自身を除く): 943488600

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 56, 60, 70, 84, 105, 120, 140, 168, 210, 280, 420, 840, 462493, 924986, 1387479, 1849972, 2312465, 2774958, 3237451, 3699944, 4624930, 5549916, 6474902, 6937395, 9249860, 9712353, 11099832, 12949804, 13874790, 16187255, 18499720, 19424706, 25899608, 27749580, 32374510, 38849412, 48561765, 55499160, 64749020, 77698824, 97123530, 129498040, 194247060, 388494120]

約数ペア:

[(1, 388494120), (2, 194247060), (3, 129498040), (4, 97123530), (5, 77698824), (6, 64749020), (7, 55499160), (8, 48561765), (10, 38849412), (12, 32374510), (14, 27749580), (15, 25899608), (20, 19424706), (21, 18499720), (24, 16187255), (28, 13874790), (30, 12949804), (35, 11099832), (40, 9712353), (42, 9249860), (56, 6937395), (60, 6474902), (70, 5549916), (84, 4624930), (105, 3699944), (120, 3237451), (140, 2774958), (168, 2312465), (210, 1849972), (280, 1387479), (420, 924986), (840, 462493)]