278990920

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{23327}}^1$

素因数の和:23374

約数の個数: 64

約数和(自身を含む): 705438720

約数和(自身を除く): 426447800

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 23, 26, 40, 46, 52, 65, 92, 104, 115, 130, 184, 230, 260, 299, 460, 520, 598, 920, 1196, 1495, 2392, 2990, 5980, 11960, 23327, 46654, 93308, 116635, 186616, 233270, 303251, 466540, 536521, 606502, 933080, 1073042, 1213004, 1516255, 2146084, 2426008, 2682605, 3032510, 4292168, 5365210, 6065020, 6974773, 10730420, 12130040, 13949546, 21460840, 27899092, 34873865, 55798184, 69747730, 139495460, 278990920]

約数ペア:

[(1, 278990920), (2, 139495460), (4, 69747730), (5, 55798184), (8, 34873865), (10, 27899092), (13, 21460840), (20, 13949546), (23, 12130040), (26, 10730420), (40, 6974773), (46, 6065020), (52, 5365210), (65, 4292168), (92, 3032510), (104, 2682605), (115, 2426008), (130, 2146084), (184, 1516255), (230, 1213004), (260, 1073042), (299, 933080), (460, 606502), (520, 536521), (598, 466540), (920, 303251), (1196, 233270), (1495, 186616), (2392, 116635), (2990, 93308), (5980, 46654), (11960, 23327)]