128661840

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{178697}}^1$

素因数の和:178716

約数の個数: 60

約数和(自身を含む): 432091764

約数和(自身を除く): 303429924

約数列:

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

約数ペア:

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