287321720

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{229}}^1\times {\mathrm{4481}}^1$

素因数の和:4728

約数の個数: 64

約数和(自身を含む): 742219200

約数和(自身を除く): 454897480

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 229, 280, 458, 916, 1145, 1603, 1832, 2290, 3206, 4481, 4580, 6412, 8015, 8962, 9160, 12824, 16030, 17924, 22405, 31367, 32060, 35848, 44810, 62734, 64120, 89620, 125468, 156835, 179240, 250936, 313670, 627340, 1026149, 1254680, 2052298, 4104596, 5130745, 7183043, 8209192, 10261490, 14366086, 20522980, 28732172, 35915215, 41045960, 57464344, 71830430, 143660860, 287321720]

約数ペア:

[(1, 287321720), (2, 143660860), (4, 71830430), (5, 57464344), (7, 41045960), (8, 35915215), (10, 28732172), (14, 20522980), (20, 14366086), (28, 10261490), (35, 8209192), (40, 7183043), (56, 5130745), (70, 4104596), (140, 2052298), (229, 1254680), (280, 1026149), (458, 627340), (916, 313670), (1145, 250936), (1603, 179240), (1832, 156835), (2290, 125468), (3206, 89620), (4481, 64120), (4580, 62734), (6412, 44810), (8015, 35848), (8962, 32060), (9160, 31367), (12824, 22405), (16030, 17924)]