1621960

素因数分解:

$2^3\times 5^1\times {\mathrm{23}}^1\times {\mathrm{41}}^1\times {\mathrm{43}}^1$

素因数の和:118

約数の個数: 64

約数和(自身を含む): 3991680

約数和(自身を除く): 2369720

約数列:

[1, 2, 4, 5, 8, 10, 20, 23, 40, 41, 43, 46, 82, 86, 92, 115, 164, 172, 184, 205, 215, 230, 328, 344, 410, 430, 460, 820, 860, 920, 943, 989, 1640, 1720, 1763, 1886, 1978, 3526, 3772, 3956, 4715, 4945, 7052, 7544, 7912, 8815, 9430, 9890, 14104, 17630, 18860, 19780, 35260, 37720, 39560, 40549, 70520, 81098, 162196, 202745, 324392, 405490, 810980, 1621960]

約数ペア:

[(1, 1621960), (2, 810980), (4, 405490), (5, 324392), (8, 202745), (10, 162196), (20, 81098), (23, 70520), (40, 40549), (41, 39560), (43, 37720), (46, 35260), (82, 19780), (86, 18860), (92, 17630), (115, 14104), (164, 9890), (172, 9430), (184, 8815), (205, 7912), (215, 7544), (230, 7052), (328, 4945), (344, 4715), (410, 3956), (430, 3772), (460, 3526), (820, 1978), (860, 1886), (920, 1763), (943, 1720), (989, 1640)]