981027760

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{541}}^1\times {\mathrm{1193}}^1$

素因数の和:1766

約数の個数: 80

約数和(自身を含む): 2407390560

約数和(自身を除く): 1426362800

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 76, 80, 95, 152, 190, 304, 380, 541, 760, 1082, 1193, 1520, 2164, 2386, 2705, 4328, 4772, 5410, 5965, 8656, 9544, 10279, 10820, 11930, 19088, 20558, 21640, 22667, 23860, 41116, 43280, 45334, 47720, 51395, 82232, 90668, 95440, 102790, 113335, 164464, 181336, 205580, 226670, 362672, 411160, 453340, 645413, 822320, 906680, 1290826, 1813360, 2581652, 3227065, 5163304, 6454130, 10326608, 12262847, 12908260, 24525694, 25816520, 49051388, 51633040, 61314235, 98102776, 122628470, 196205552, 245256940, 490513880, 981027760]

約数ペア:

[(1, 981027760), (2, 490513880), (4, 245256940), (5, 196205552), (8, 122628470), (10, 98102776), (16, 61314235), (19, 51633040), (20, 49051388), (38, 25816520), (40, 24525694), (76, 12908260), (80, 12262847), (95, 10326608), (152, 6454130), (190, 5163304), (304, 3227065), (380, 2581652), (541, 1813360), (760, 1290826), (1082, 906680), (1193, 822320), (1520, 645413), (2164, 453340), (2386, 411160), (2705, 362672), (4328, 226670), (4772, 205580), (5410, 181336), (5965, 164464), (8656, 113335), (9544, 102790), (10279, 95440), (10820, 90668), (11930, 82232), (19088, 51395), (20558, 47720), (21640, 45334), (22667, 43280), (23860, 41116)]