257323680

素因数分解:

$2^5\times 3^2\times 5^1\times {\mathrm{178697}}^1$

素因数の和:178718

約数の個数: 72

約数和(自身を含む): 878121972

約数和(自身を除く): 620798292

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 32, 36, 40, 45, 48, 60, 72, 80, 90, 96, 120, 144, 160, 180, 240, 288, 360, 480, 720, 1440, 178697, 357394, 536091, 714788, 893485, 1072182, 1429576, 1608273, 1786970, 2144364, 2680455, 2859152, 3216546, 3573940, 4288728, 5360910, 5718304, 6433092, 7147880, 8041365, 8577456, 10721820, 12866184, 14295760, 16082730, 17154912, 21443640, 25732368, 28591520, 32165460, 42887280, 51464736, 64330920, 85774560, 128661840, 257323680]

約数ペア:

[(1, 257323680), (2, 128661840), (3, 85774560), (4, 64330920), (5, 51464736), (6, 42887280), (8, 32165460), (9, 28591520), (10, 25732368), (12, 21443640), (15, 17154912), (16, 16082730), (18, 14295760), (20, 12866184), (24, 10721820), (30, 8577456), (32, 8041365), (36, 7147880), (40, 6433092), (45, 5718304), (48, 5360910), (60, 4288728), (72, 3573940), (80, 3216546), (90, 2859152), (96, 2680455), (120, 2144364), (144, 1786970), (160, 1608273), (180, 1429576), (240, 1072182), (288, 893485), (360, 714788), (480, 536091), (720, 357394), (1440, 178697)]