21080160

素因数分解:

$2^5\times 3^2\times 5^1\times {\mathrm{14639}}^1$

素因数の和:14660

約数の個数: 72

約数和(自身を含む): 71940960

約数和(自身を除く): 50860800

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, 14639, 29278, 43917, 58556, 73195, 87834, 117112, 131751, 146390, 175668, 219585, 234224, 263502, 292780, 351336, 439170, 468448, 527004, 585560, 658755, 702672, 878340, 1054008, 1171120, 1317510, 1405344, 1756680, 2108016, 2342240, 2635020, 3513360, 4216032, 5270040, 7026720, 10540080, 21080160]

約数ペア:

[(1, 21080160), (2, 10540080), (3, 7026720), (4, 5270040), (5, 4216032), (6, 3513360), (8, 2635020), (9, 2342240), (10, 2108016), (12, 1756680), (15, 1405344), (16, 1317510), (18, 1171120), (20, 1054008), (24, 878340), (30, 702672), (32, 658755), (36, 585560), (40, 527004), (45, 468448), (48, 439170), (60, 351336), (72, 292780), (80, 263502), (90, 234224), (96, 219585), (120, 175668), (144, 146390), (160, 131751), (180, 117112), (240, 87834), (288, 73195), (360, 58556), (480, 43917), (720, 29278), (1440, 14639)]