309389860

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{271}}^1\times {\mathrm{4391}}^1$

素因数の和:4684

約数の個数: 48

約数和(自身を含む): 702438912

約数和(自身を除く): 393049052

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 271, 542, 1084, 1355, 2710, 3523, 4391, 5420, 7046, 8782, 14092, 17564, 17615, 21955, 35230, 43910, 57083, 70460, 87820, 114166, 228332, 285415, 570830, 1141660, 1189961, 2379922, 4759844, 5949805, 11899610, 15469493, 23799220, 30938986, 61877972, 77347465, 154694930, 309389860]

約数ペア:

[(1, 309389860), (2, 154694930), (4, 77347465), (5, 61877972), (10, 30938986), (13, 23799220), (20, 15469493), (26, 11899610), (52, 5949805), (65, 4759844), (130, 2379922), (260, 1189961), (271, 1141660), (542, 570830), (1084, 285415), (1355, 228332), (2710, 114166), (3523, 87820), (4391, 70460), (5420, 57083), (7046, 43910), (8782, 35230), (14092, 21955), (17564, 17615)]