1971970

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{197}}^1$

素因数の和:235

約数の個数: 64

約数和(自身を含む): 4790016

約数和(自身を除く): 2818046

約数列:

[1, 2, 5, 7, 10, 11, 13, 14, 22, 26, 35, 55, 65, 70, 77, 91, 110, 130, 143, 154, 182, 197, 286, 385, 394, 455, 715, 770, 910, 985, 1001, 1379, 1430, 1970, 2002, 2167, 2561, 2758, 4334, 5005, 5122, 6895, 10010, 10835, 12805, 13790, 15169, 17927, 21670, 25610, 28171, 30338, 35854, 56342, 75845, 89635, 140855, 151690, 179270, 197197, 281710, 394394, 985985, 1971970]

約数ペア:

[(1, 1971970), (2, 985985), (5, 394394), (7, 281710), (10, 197197), (11, 179270), (13, 151690), (14, 140855), (22, 89635), (26, 75845), (35, 56342), (55, 35854), (65, 30338), (70, 28171), (77, 25610), (91, 21670), (110, 17927), (130, 15169), (143, 13790), (154, 12805), (182, 10835), (197, 10010), (286, 6895), (385, 5122), (394, 5005), (455, 4334), (715, 2758), (770, 2561), (910, 2167), (985, 2002), (1001, 1970), (1379, 1430)]