664433838

素因数分解:

$2^1\times 3^2\times {\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{31849}}^1$

素因数の和:31937

約数の個数: 48

約数和(自身を含む): 1540266000

約数和(自身を除く): 875832162

約数列:

[1, 2, 3, 6, 9, 18, 19, 38, 57, 61, 114, 122, 171, 183, 342, 366, 549, 1098, 1159, 2318, 3477, 6954, 10431, 20862, 31849, 63698, 95547, 191094, 286641, 573282, 605131, 1210262, 1815393, 1942789, 3630786, 3885578, 5446179, 5828367, 10892358, 11656734, 17485101, 34970202, 36912991, 73825982, 110738973, 221477946, 332216919, 664433838]

約数ペア:

[(1, 664433838), (2, 332216919), (3, 221477946), (6, 110738973), (9, 73825982), (18, 36912991), (19, 34970202), (38, 17485101), (57, 11656734), (61, 10892358), (114, 5828367), (122, 5446179), (171, 3885578), (183, 3630786), (342, 1942789), (366, 1815393), (549, 1210262), (1098, 605131), (1159, 573282), (2318, 286641), (3477, 191094), (6954, 95547), (10431, 63698), (20862, 31849)]