291490990

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{53}}^1\times {\mathrm{78569}}^1$

素因数の和:78636

約数の個数: 32

約数和(自身を含む): 610960320

約数和(自身を除く): 319469330

約数列:

[1, 2, 5, 7, 10, 14, 35, 53, 70, 106, 265, 371, 530, 742, 1855, 3710, 78569, 157138, 392845, 549983, 785690, 1099966, 2749915, 4164157, 5499830, 8328314, 20820785, 29149099, 41641570, 58298198, 145745495, 291490990]

約数ペア:

[(1, 291490990), (2, 145745495), (5, 58298198), (7, 41641570), (10, 29149099), (14, 20820785), (35, 8328314), (53, 5499830), (70, 4164157), (106, 2749915), (265, 1099966), (371, 785690), (530, 549983), (742, 392845), (1855, 157138), (3710, 78569)]