28978990

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{3547}}^1$

素因数の和:3616

約数の個数: 32

約数和(自身を含む): 56200320

約数和(自身を除く): 27221330

約数列:

[1, 2, 5, 10, 19, 38, 43, 86, 95, 190, 215, 430, 817, 1634, 3547, 4085, 7094, 8170, 17735, 35470, 67393, 134786, 152521, 305042, 336965, 673930, 762605, 1525210, 2897899, 5795798, 14489495, 28978990]

約数ペア:

[(1, 28978990), (2, 14489495), (5, 5795798), (10, 2897899), (19, 1525210), (38, 762605), (43, 673930), (86, 336965), (95, 305042), (190, 152521), (215, 134786), (430, 67393), (817, 35470), (1634, 17735), (3547, 8170), (4085, 7094)]