20749968

素因数分解:

$2^4\times 3^2\times {\mathrm{103}}^1\times {\mathrm{1399}}^1$

素因数の和:1516

約数の個数: 60

約数和(自身を含む): 58676800

約数和(自身を除く): 37926832

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 36, 48, 72, 103, 144, 206, 309, 412, 618, 824, 927, 1236, 1399, 1648, 1854, 2472, 2798, 3708, 4197, 4944, 5596, 7416, 8394, 11192, 12591, 14832, 16788, 22384, 25182, 33576, 50364, 67152, 100728, 144097, 201456, 288194, 432291, 576388, 864582, 1152776, 1296873, 1729164, 2305552, 2593746, 3458328, 5187492, 6916656, 10374984, 20749968]

約数ペア:

[(1, 20749968), (2, 10374984), (3, 6916656), (4, 5187492), (6, 3458328), (8, 2593746), (9, 2305552), (12, 1729164), (16, 1296873), (18, 1152776), (24, 864582), (36, 576388), (48, 432291), (72, 288194), (103, 201456), (144, 144097), (206, 100728), (309, 67152), (412, 50364), (618, 33576), (824, 25182), (927, 22384), (1236, 16788), (1399, 14832), (1648, 12591), (1854, 11192), (2472, 8394), (2798, 7416), (3708, 5596), (4197, 4944)]