30711720

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19687}}^1$

素因数の和:19714

約数の個数: 64

約数和(自身を含む): 99227520

約数和(自身を除く): 68515800

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 20, 24, 26, 30, 39, 40, 52, 60, 65, 78, 104, 120, 130, 156, 195, 260, 312, 390, 520, 780, 1560, 19687, 39374, 59061, 78748, 98435, 118122, 157496, 196870, 236244, 255931, 295305, 393740, 472488, 511862, 590610, 767793, 787480, 1023724, 1181220, 1279655, 1535586, 2047448, 2362440, 2559310, 3071172, 3838965, 5118620, 6142344, 7677930, 10237240, 15355860, 30711720]

約数ペア:

[(1, 30711720), (2, 15355860), (3, 10237240), (4, 7677930), (5, 6142344), (6, 5118620), (8, 3838965), (10, 3071172), (12, 2559310), (13, 2362440), (15, 2047448), (20, 1535586), (24, 1279655), (26, 1181220), (30, 1023724), (39, 787480), (40, 767793), (52, 590610), (60, 511862), (65, 472488), (78, 393740), (104, 295305), (120, 255931), (130, 236244), (156, 196870), (195, 157496), (260, 118122), (312, 98435), (390, 78748), (520, 59061), (780, 39374), (1560, 19687)]