209120820

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{991}}^1\times {\mathrm{3517}}^1$

素因数の和:4520

約数の個数: 48

約数和(自身を含む): 586295808

約数和(自身を除く): 377174988

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 991, 1982, 2973, 3517, 3964, 4955, 5946, 7034, 9910, 10551, 11892, 14068, 14865, 17585, 19820, 21102, 29730, 35170, 42204, 52755, 59460, 70340, 105510, 211020, 3485347, 6970694, 10456041, 13941388, 17426735, 20912082, 34853470, 41824164, 52280205, 69706940, 104560410, 209120820]

約数ペア:

[(1, 209120820), (2, 104560410), (3, 69706940), (4, 52280205), (5, 41824164), (6, 34853470), (10, 20912082), (12, 17426735), (15, 13941388), (20, 10456041), (30, 6970694), (60, 3485347), (991, 211020), (1982, 105510), (2973, 70340), (3517, 59460), (3964, 52755), (4955, 42204), (5946, 35170), (7034, 29730), (9910, 21102), (10551, 19820), (11892, 17585), (14068, 14865)]