201639520

素因数分解:

$2^5\times 5^1\times {\mathrm{239}}^1\times {\mathrm{5273}}^1$

素因数の和:5527

約数の個数: 48

約数和(自身を含む): 478457280

約数和(自身を除く): 276817760

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 239, 478, 956, 1195, 1912, 2390, 3824, 4780, 5273, 7648, 9560, 10546, 19120, 21092, 26365, 38240, 42184, 52730, 84368, 105460, 168736, 210920, 421840, 843680, 1260247, 2520494, 5040988, 6301235, 10081976, 12602470, 20163952, 25204940, 40327904, 50409880, 100819760, 201639520]

約数ペア:

[(1, 201639520), (2, 100819760), (4, 50409880), (5, 40327904), (8, 25204940), (10, 20163952), (16, 12602470), (20, 10081976), (32, 6301235), (40, 5040988), (80, 2520494), (160, 1260247), (239, 843680), (478, 421840), (956, 210920), (1195, 168736), (1912, 105460), (2390, 84368), (3824, 52730), (4780, 42184), (5273, 38240), (7648, 26365), (9560, 21092), (10546, 19120)]