128665520

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{89}}^1\times {\mathrm{1063}}^1$

素因数の和:1182

約数の個数: 80

約数和(自身を含む): 320604480

約数和(自身を除く): 191938960

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 34, 40, 68, 80, 85, 89, 136, 170, 178, 272, 340, 356, 445, 680, 712, 890, 1063, 1360, 1424, 1513, 1780, 2126, 3026, 3560, 4252, 5315, 6052, 7120, 7565, 8504, 10630, 12104, 15130, 17008, 18071, 21260, 24208, 30260, 36142, 42520, 60520, 72284, 85040, 90355, 94607, 121040, 144568, 180710, 189214, 289136, 361420, 378428, 473035, 722840, 756856, 946070, 1445680, 1513712, 1608319, 1892140, 3216638, 3784280, 6433276, 7568560, 8041595, 12866552, 16083190, 25733104, 32166380, 64332760, 128665520]

約数ペア:

[(1, 128665520), (2, 64332760), (4, 32166380), (5, 25733104), (8, 16083190), (10, 12866552), (16, 8041595), (17, 7568560), (20, 6433276), (34, 3784280), (40, 3216638), (68, 1892140), (80, 1608319), (85, 1513712), (89, 1445680), (136, 946070), (170, 756856), (178, 722840), (272, 473035), (340, 378428), (356, 361420), (445, 289136), (680, 189214), (712, 180710), (890, 144568), (1063, 121040), (1360, 94607), (1424, 90355), (1513, 85040), (1780, 72284), (2126, 60520), (3026, 42520), (3560, 36142), (4252, 30260), (5315, 24208), (6052, 21260), (7120, 18071), (7565, 17008), (8504, 15130), (10630, 12104)]