256015260

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{331}}^1\times {\mathrm{4297}}^1$

素因数の和:4643

約数の個数: 72

約数和(自身を含む): 779107056

約数和(自身を除く): 523091796

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 331, 662, 993, 1324, 1655, 1986, 2979, 3310, 3972, 4297, 4965, 5958, 6620, 8594, 9930, 11916, 12891, 14895, 17188, 19860, 21485, 25782, 29790, 38673, 42970, 51564, 59580, 64455, 77346, 85940, 128910, 154692, 193365, 257820, 386730, 773460, 1422307, 2844614, 4266921, 5689228, 7111535, 8533842, 12800763, 14223070, 17067684, 21334605, 25601526, 28446140, 42669210, 51203052, 64003815, 85338420, 128007630, 256015260]

約数ペア:

[(1, 256015260), (2, 128007630), (3, 85338420), (4, 64003815), (5, 51203052), (6, 42669210), (9, 28446140), (10, 25601526), (12, 21334605), (15, 17067684), (18, 14223070), (20, 12800763), (30, 8533842), (36, 7111535), (45, 5689228), (60, 4266921), (90, 2844614), (180, 1422307), (331, 773460), (662, 386730), (993, 257820), (1324, 193365), (1655, 154692), (1986, 128910), (2979, 85940), (3310, 77346), (3972, 64455), (4297, 59580), (4965, 51564), (5958, 42970), (6620, 38673), (8594, 29790), (9930, 25782), (11916, 21485), (12891, 19860), (14895, 17188)]