261215880

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{128047}}^1$

素因数の和:128078

約数の個数: 64

約数和(自身を含む): 829751040

約数和(自身を除く): 568535160

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 17, 20, 24, 30, 34, 40, 51, 60, 68, 85, 102, 120, 136, 170, 204, 255, 340, 408, 510, 680, 1020, 2040, 128047, 256094, 384141, 512188, 640235, 768282, 1024376, 1280470, 1536564, 1920705, 2176799, 2560940, 3073128, 3841410, 4353598, 5121880, 6530397, 7682820, 8707196, 10883995, 13060794, 15365640, 17414392, 21767990, 26121588, 32651985, 43535980, 52243176, 65303970, 87071960, 130607940, 261215880]

約数ペア:

[(1, 261215880), (2, 130607940), (3, 87071960), (4, 65303970), (5, 52243176), (6, 43535980), (8, 32651985), (10, 26121588), (12, 21767990), (15, 17414392), (17, 15365640), (20, 13060794), (24, 10883995), (30, 8707196), (34, 7682820), (40, 6530397), (51, 5121880), (60, 4353598), (68, 3841410), (85, 3073128), (102, 2560940), (120, 2176799), (136, 1920705), (170, 1536564), (204, 1280470), (255, 1024376), (340, 768282), (408, 640235), (510, 512188), (680, 384141), (1020, 256094), (2040, 128047)]