256393920

素因数分解:

$2^6\times 3^1\times 5^1\times {\mathrm{409}}^1\times {\mathrm{653}}^1$

素因数の和:1082

約数の個数: 112

約数和(自身を含む): 817290720

約数和(自身を除く): 560896800

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 40, 48, 60, 64, 80, 96, 120, 160, 192, 240, 320, 409, 480, 653, 818, 960, 1227, 1306, 1636, 1959, 2045, 2454, 2612, 3265, 3272, 3918, 4090, 4908, 5224, 6135, 6530, 6544, 7836, 8180, 9795, 9816, 10448, 12270, 13060, 13088, 15672, 16360, 19590, 19632, 20896, 24540, 26120, 26176, 31344, 32720, 39180, 39264, 41792, 49080, 52240, 62688, 65440, 78360, 78528, 98160, 104480, 125376, 130880, 156720, 196320, 208960, 267077, 313440, 392640, 534154, 626880, 801231, 1068308, 1335385, 1602462, 2136616, 2670770, 3204924, 4006155, 4273232, 5341540, 6409848, 8012310, 8546464, 10683080, 12819696, 16024620, 17092928, 21366160, 25639392, 32049240, 42732320, 51278784, 64098480, 85464640, 128196960, 256393920]

約数ペア:

[(1, 256393920), (2, 128196960), (3, 85464640), (4, 64098480), (5, 51278784), (6, 42732320), (8, 32049240), (10, 25639392), (12, 21366160), (15, 17092928), (16, 16024620), (20, 12819696), (24, 10683080), (30, 8546464), (32, 8012310), (40, 6409848), (48, 5341540), (60, 4273232), (64, 4006155), (80, 3204924), (96, 2670770), (120, 2136616), (160, 1602462), (192, 1335385), (240, 1068308), (320, 801231), (409, 626880), (480, 534154), (653, 392640), (818, 313440), (960, 267077), (1227, 208960), (1306, 196320), (1636, 156720), (1959, 130880), (2045, 125376), (2454, 104480), (2612, 98160), (3265, 78528), (3272, 78360), (3918, 65440), (4090, 62688), (4908, 52240), (5224, 49080), (6135, 41792), (6530, 39264), (6544, 39180), (7836, 32720), (8180, 31344), (9795, 26176), (9816, 26120), (10448, 24540), (12270, 20896), (13060, 19632), (13088, 19590), (15672, 16360)]