1618277920

素因数分解:

$2^5\times 5^1\times 7^2\times {\mathrm{206413}}^1$

素因数の和:206442

約数の個数: 72

約数和(自身を含む): 4447396044

約数和(自身を除く): 2829118124

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 49, 56, 70, 80, 98, 112, 140, 160, 196, 224, 245, 280, 392, 490, 560, 784, 980, 1120, 1568, 1960, 3920, 7840, 206413, 412826, 825652, 1032065, 1444891, 1651304, 2064130, 2889782, 3302608, 4128260, 5779564, 6605216, 7224455, 8256520, 10114237, 11559128, 14448910, 16513040, 20228474, 23118256, 28897820, 33026080, 40456948, 46236512, 50571185, 57795640, 80913896, 101142370, 115591280, 161827792, 202284740, 231182560, 323655584, 404569480, 809138960, 1618277920]

約数ペア:

[(1, 1618277920), (2, 809138960), (4, 404569480), (5, 323655584), (7, 231182560), (8, 202284740), (10, 161827792), (14, 115591280), (16, 101142370), (20, 80913896), (28, 57795640), (32, 50571185), (35, 46236512), (40, 40456948), (49, 33026080), (56, 28897820), (70, 23118256), (80, 20228474), (98, 16513040), (112, 14448910), (140, 11559128), (160, 10114237), (196, 8256520), (224, 7224455), (245, 6605216), (280, 5779564), (392, 4128260), (490, 3302608), (560, 2889782), (784, 2064130), (980, 1651304), (1120, 1444891), (1568, 1032065), (1960, 825652), (3920, 412826), (7840, 206413)]