121520280

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{144667}}^1$

素因数の和:144688

約数の個数: 64

約数和(自身を含む): 416643840

約数和(自身を除く): 295123560

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 56, 60, 70, 84, 105, 120, 140, 168, 210, 280, 420, 840, 144667, 289334, 434001, 578668, 723335, 868002, 1012669, 1157336, 1446670, 1736004, 2025338, 2170005, 2893340, 3038007, 3472008, 4050676, 4340010, 5063345, 5786680, 6076014, 8101352, 8680020, 10126690, 12152028, 15190035, 17360040, 20253380, 24304056, 30380070, 40506760, 60760140, 121520280]

約数ペア:

[(1, 121520280), (2, 60760140), (3, 40506760), (4, 30380070), (5, 24304056), (6, 20253380), (7, 17360040), (8, 15190035), (10, 12152028), (12, 10126690), (14, 8680020), (15, 8101352), (20, 6076014), (21, 5786680), (24, 5063345), (28, 4340010), (30, 4050676), (35, 3472008), (40, 3038007), (42, 2893340), (56, 2170005), (60, 2025338), (70, 1736004), (84, 1446670), (105, 1157336), (120, 1012669), (140, 868002), (168, 723335), (210, 578668), (280, 434001), (420, 289334), (840, 144667)]