16712420

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{89}}^1\times {\mathrm{229}}^1$

素因数の和:368

約数の個数: 48

約数和(自身を含む): 36514800

約数和(自身を除く): 19802380

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 89, 164, 178, 205, 229, 356, 410, 445, 458, 820, 890, 916, 1145, 1780, 2290, 3649, 4580, 7298, 9389, 14596, 18245, 18778, 20381, 36490, 37556, 40762, 46945, 72980, 81524, 93890, 101905, 187780, 203810, 407620, 835621, 1671242, 3342484, 4178105, 8356210, 16712420]

約数ペア:

[(1, 16712420), (2, 8356210), (4, 4178105), (5, 3342484), (10, 1671242), (20, 835621), (41, 407620), (82, 203810), (89, 187780), (164, 101905), (178, 93890), (205, 81524), (229, 72980), (356, 46945), (410, 40762), (445, 37556), (458, 36490), (820, 20381), (890, 18778), (916, 18245), (1145, 14596), (1780, 9389), (2290, 7298), (3649, 4580)]