318349720

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{659}}^1\times {\mathrm{929}}^1$

素因数の和:1612

約数の個数: 64

約数和(自身を含む): 773388000

約数和(自身を除く): 455038280

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 659, 929, 1318, 1858, 2636, 3295, 3716, 4645, 5272, 6590, 7432, 8567, 9290, 12077, 13180, 17134, 18580, 24154, 26360, 34268, 37160, 42835, 48308, 60385, 68536, 85670, 96616, 120770, 171340, 241540, 342680, 483080, 612211, 1224422, 2448844, 3061055, 4897688, 6122110, 7958743, 12244220, 15917486, 24488440, 31834972, 39793715, 63669944, 79587430, 159174860, 318349720]

約数ペア:

[(1, 318349720), (2, 159174860), (4, 79587430), (5, 63669944), (8, 39793715), (10, 31834972), (13, 24488440), (20, 15917486), (26, 12244220), (40, 7958743), (52, 6122110), (65, 4897688), (104, 3061055), (130, 2448844), (260, 1224422), (520, 612211), (659, 483080), (929, 342680), (1318, 241540), (1858, 171340), (2636, 120770), (3295, 96616), (3716, 85670), (4645, 68536), (5272, 60385), (6590, 48308), (7432, 42835), (8567, 37160), (9290, 34268), (12077, 26360), (13180, 24154), (17134, 18580)]