305465480

素因数分解:

$2^3\times 5^1\times {\mathrm{127}}^1\times {\mathrm{157}}^1\times {\mathrm{383}}^1$

素因数の和:678

約数の個数: 64

約数和(自身を含む): 698941440

約数和(自身を除く): 393475960

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 127, 157, 254, 314, 383, 508, 628, 635, 766, 785, 1016, 1256, 1270, 1532, 1570, 1915, 2540, 3064, 3140, 3830, 5080, 6280, 7660, 15320, 19939, 39878, 48641, 60131, 79756, 97282, 99695, 120262, 159512, 194564, 199390, 240524, 243205, 300655, 389128, 398780, 481048, 486410, 601310, 797560, 972820, 1202620, 1945640, 2405240, 7636637, 15273274, 30546548, 38183185, 61093096, 76366370, 152732740, 305465480]

約数ペア:

[(1, 305465480), (2, 152732740), (4, 76366370), (5, 61093096), (8, 38183185), (10, 30546548), (20, 15273274), (40, 7636637), (127, 2405240), (157, 1945640), (254, 1202620), (314, 972820), (383, 797560), (508, 601310), (628, 486410), (635, 481048), (766, 398780), (785, 389128), (1016, 300655), (1256, 243205), (1270, 240524), (1532, 199390), (1570, 194564), (1915, 159512), (2540, 120262), (3064, 99695), (3140, 97282), (3830, 79756), (5080, 60131), (6280, 48641), (7660, 39878), (15320, 19939)]