218693180

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{167}}^1\times {\mathrm{1597}}^1$

素因数の和:1814

約数の個数: 48

約数和(自身を含む): 473570496

約数和(自身を除く): 254877316

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 164, 167, 205, 334, 410, 668, 820, 835, 1597, 1670, 3194, 3340, 6388, 6847, 7985, 13694, 15970, 27388, 31940, 34235, 65477, 68470, 130954, 136940, 261908, 266699, 327385, 533398, 654770, 1066796, 1309540, 1333495, 2666990, 5333980, 10934659, 21869318, 43738636, 54673295, 109346590, 218693180]

約数ペア:

[(1, 218693180), (2, 109346590), (4, 54673295), (5, 43738636), (10, 21869318), (20, 10934659), (41, 5333980), (82, 2666990), (164, 1333495), (167, 1309540), (205, 1066796), (334, 654770), (410, 533398), (668, 327385), (820, 266699), (835, 261908), (1597, 136940), (1670, 130954), (3194, 68470), (3340, 65477), (6388, 34235), (6847, 31940), (7985, 27388), (13694, 15970)]