239345340

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{306853}}^1$

素因数の和:306878

約数の個数: 48

約数和(自身を含む): 721720608

約数和(自身を除く): 482375268

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 26, 30, 39, 52, 60, 65, 78, 130, 156, 195, 260, 390, 780, 306853, 613706, 920559, 1227412, 1534265, 1841118, 3068530, 3682236, 3989089, 4602795, 6137060, 7978178, 9205590, 11967267, 15956356, 18411180, 19945445, 23934534, 39890890, 47869068, 59836335, 79781780, 119672670, 239345340]

約数ペア:

[(1, 239345340), (2, 119672670), (3, 79781780), (4, 59836335), (5, 47869068), (6, 39890890), (10, 23934534), (12, 19945445), (13, 18411180), (15, 15956356), (20, 11967267), (26, 9205590), (30, 7978178), (39, 6137060), (52, 4602795), (60, 3989089), (65, 3682236), (78, 3068530), (130, 1841118), (156, 1534265), (195, 1227412), (260, 920559), (390, 613706), (780, 306853)]