2455880

素因数分解:

$2^3\times 5^1\times 7^3\times {\mathrm{179}}^1$

素因数の和:211

約数の個数: 64

約数和(自身を含む): 6480000

約数和(自身を除く): 4024120

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 49, 56, 70, 98, 140, 179, 196, 245, 280, 343, 358, 392, 490, 686, 716, 895, 980, 1253, 1372, 1432, 1715, 1790, 1960, 2506, 2744, 3430, 3580, 5012, 6265, 6860, 7160, 8771, 10024, 12530, 13720, 17542, 25060, 35084, 43855, 50120, 61397, 70168, 87710, 122794, 175420, 245588, 306985, 350840, 491176, 613970, 1227940, 2455880]

約数ペア:

[(1, 2455880), (2, 1227940), (4, 613970), (5, 491176), (7, 350840), (8, 306985), (10, 245588), (14, 175420), (20, 122794), (28, 87710), (35, 70168), (40, 61397), (49, 50120), (56, 43855), (70, 35084), (98, 25060), (140, 17542), (179, 13720), (196, 12530), (245, 10024), (280, 8771), (343, 7160), (358, 6860), (392, 6265), (490, 5012), (686, 3580), (716, 3430), (895, 2744), (980, 2506), (1253, 1960), (1372, 1790), (1432, 1715)]