138878040

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{165331}}^1$

素因数の和:165352

約数の個数: 64

約数和(自身を含む): 476156160

約数和(自身を除く): 337278120

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, 165331, 330662, 495993, 661324, 826655, 991986, 1157317, 1322648, 1653310, 1983972, 2314634, 2479965, 3306620, 3471951, 3967944, 4629268, 4959930, 5786585, 6613240, 6943902, 9258536, 9919860, 11573170, 13887804, 17359755, 19839720, 23146340, 27775608, 34719510, 46292680, 69439020, 138878040]

約数ペア:

[(1, 138878040), (2, 69439020), (3, 46292680), (4, 34719510), (5, 27775608), (6, 23146340), (7, 19839720), (8, 17359755), (10, 13887804), (12, 11573170), (14, 9919860), (15, 9258536), (20, 6943902), (21, 6613240), (24, 5786585), (28, 4959930), (30, 4629268), (35, 3967944), (40, 3471951), (42, 3306620), (56, 2479965), (60, 2314634), (70, 1983972), (84, 1653310), (105, 1322648), (120, 1157317), (140, 991986), (168, 826655), (210, 661324), (280, 495993), (420, 330662), (840, 165331)]