16989680

素因数分解:

$2^4\times 5^1\times {\mathrm{53}}^1\times {\mathrm{4007}}^1$

素因数の和:4073

約数の個数: 40

約数和(自身を含む): 40256352

約数和(自身を除く): 23266672

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 53, 80, 106, 212, 265, 424, 530, 848, 1060, 2120, 4007, 4240, 8014, 16028, 20035, 32056, 40070, 64112, 80140, 160280, 212371, 320560, 424742, 849484, 1061855, 1698968, 2123710, 3397936, 4247420, 8494840, 16989680]

約数ペア:

[(1, 16989680), (2, 8494840), (4, 4247420), (5, 3397936), (8, 2123710), (10, 1698968), (16, 1061855), (20, 849484), (40, 424742), (53, 320560), (80, 212371), (106, 160280), (212, 80140), (265, 64112), (424, 40070), (530, 32056), (848, 20035), (1060, 16028), (2120, 8014), (4007, 4240)]