641221984

素因数分解:

$2^5\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{127}}^1\times {\mathrm{229}}^1$

素因数の和:432

約数の個数: 96

約数和(自身を含む): 1402168320

約数和(自身を除く): 760946336

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 52, 53, 104, 106, 127, 208, 212, 229, 254, 416, 424, 458, 508, 689, 848, 916, 1016, 1378, 1651, 1696, 1832, 2032, 2756, 2977, 3302, 3664, 4064, 5512, 5954, 6604, 6731, 7328, 11024, 11908, 12137, 13208, 13462, 22048, 23816, 24274, 26416, 26924, 29083, 47632, 48548, 52832, 53848, 58166, 87503, 95264, 97096, 107696, 116332, 157781, 175006, 194192, 215392, 232664, 315562, 350012, 378079, 388384, 465328, 631124, 700024, 756158, 930656, 1262248, 1400048, 1512316, 1541399, 2524496, 2800096, 3024632, 3082798, 5048992, 6049264, 6165596, 12098528, 12331192, 20038187, 24662384, 40076374, 49324768, 80152748, 160305496, 320610992, 641221984]

約数ペア:

[(1, 641221984), (2, 320610992), (4, 160305496), (8, 80152748), (13, 49324768), (16, 40076374), (26, 24662384), (32, 20038187), (52, 12331192), (53, 12098528), (104, 6165596), (106, 6049264), (127, 5048992), (208, 3082798), (212, 3024632), (229, 2800096), (254, 2524496), (416, 1541399), (424, 1512316), (458, 1400048), (508, 1262248), (689, 930656), (848, 756158), (916, 700024), (1016, 631124), (1378, 465328), (1651, 388384), (1696, 378079), (1832, 350012), (2032, 315562), (2756, 232664), (2977, 215392), (3302, 194192), (3664, 175006), (4064, 157781), (5512, 116332), (5954, 107696), (6604, 97096), (6731, 95264), (7328, 87503), (11024, 58166), (11908, 53848), (12137, 52832), (13208, 48548), (13462, 47632), (22048, 29083), (23816, 26924), (24274, 26416)]