211324880

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{317}}^1\times {\mathrm{641}}^1$

素因数の和:984

約数の個数: 80

約数和(自身を含む): 531622224

約数和(自身を除く): 320297344

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 208, 260, 317, 520, 634, 641, 1040, 1268, 1282, 1585, 2536, 2564, 3170, 3205, 4121, 5072, 5128, 6340, 6410, 8242, 8333, 10256, 12680, 12820, 16484, 16666, 20605, 25360, 25640, 32968, 33332, 41210, 41665, 51280, 65936, 66664, 82420, 83330, 133328, 164840, 166660, 203197, 329680, 333320, 406394, 666640, 812788, 1015985, 1625576, 2031970, 2641561, 3251152, 4063940, 5283122, 8127880, 10566244, 13207805, 16255760, 21132488, 26415610, 42264976, 52831220, 105662440, 211324880]

約数ペア:

[(1, 211324880), (2, 105662440), (4, 52831220), (5, 42264976), (8, 26415610), (10, 21132488), (13, 16255760), (16, 13207805), (20, 10566244), (26, 8127880), (40, 5283122), (52, 4063940), (65, 3251152), (80, 2641561), (104, 2031970), (130, 1625576), (208, 1015985), (260, 812788), (317, 666640), (520, 406394), (634, 333320), (641, 329680), (1040, 203197), (1268, 166660), (1282, 164840), (1585, 133328), (2536, 83330), (2564, 82420), (3170, 66664), (3205, 65936), (4121, 51280), (5072, 41665), (5128, 41210), (6340, 33332), (6410, 32968), (8242, 25640), (8333, 25360), (10256, 20605), (12680, 16666), (12820, 16484)]