7836220

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{223}}^1\times {\mathrm{251}}^1$

素因数の和:490

約数の個数: 48

約数和(自身を含む): 18966528

約数和(自身を除く): 11130308

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 223, 251, 446, 502, 892, 1004, 1115, 1255, 1561, 1757, 2230, 2510, 3122, 3514, 4460, 5020, 6244, 7028, 7805, 8785, 15610, 17570, 31220, 35140, 55973, 111946, 223892, 279865, 391811, 559730, 783622, 1119460, 1567244, 1959055, 3918110, 7836220]

約数ペア:

[(1, 7836220), (2, 3918110), (4, 1959055), (5, 1567244), (7, 1119460), (10, 783622), (14, 559730), (20, 391811), (28, 279865), (35, 223892), (70, 111946), (140, 55973), (223, 35140), (251, 31220), (446, 17570), (502, 15610), (892, 8785), (1004, 7805), (1115, 7028), (1255, 6244), (1561, 5020), (1757, 4460), (2230, 3514), (2510, 3122)]