61508920

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{3251}}^1$

素因数の和:3316

約数の個数: 64

約数和(自身を含む): 154535040

約数和(自身を除く): 93026120

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 43, 44, 55, 86, 88, 110, 172, 215, 220, 344, 430, 440, 473, 860, 946, 1720, 1892, 2365, 3251, 3784, 4730, 6502, 9460, 13004, 16255, 18920, 26008, 32510, 35761, 65020, 71522, 130040, 139793, 143044, 178805, 279586, 286088, 357610, 559172, 698965, 715220, 1118344, 1397930, 1430440, 1537723, 2795860, 3075446, 5591720, 6150892, 7688615, 12301784, 15377230, 30754460, 61508920]

約数ペア:

[(1, 61508920), (2, 30754460), (4, 15377230), (5, 12301784), (8, 7688615), (10, 6150892), (11, 5591720), (20, 3075446), (22, 2795860), (40, 1537723), (43, 1430440), (44, 1397930), (55, 1118344), (86, 715220), (88, 698965), (110, 559172), (172, 357610), (215, 286088), (220, 279586), (344, 178805), (430, 143044), (440, 139793), (473, 130040), (860, 71522), (946, 65020), (1720, 35761), (1892, 32510), (2365, 26008), (3251, 18920), (3784, 16255), (4730, 13004), (6502, 9460)]