1221640280

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{1783}}^1\times {\mathrm{2447}}^1$

素因数の和:4248

約数の個数: 64

約数和(自身を含む): 3144407040

約数和(自身を除く): 1922766760

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 1783, 2447, 3566, 4894, 7132, 8915, 9788, 12235, 12481, 14264, 17129, 17830, 19576, 24470, 24962, 34258, 35660, 48940, 49924, 62405, 68516, 71320, 85645, 97880, 99848, 124810, 137032, 171290, 249620, 342580, 499240, 685160, 4363001, 8726002, 17452004, 21815005, 30541007, 34904008, 43630010, 61082014, 87260020, 122164028, 152705035, 174520040, 244328056, 305410070, 610820140, 1221640280]

約数ペア:

[(1, 1221640280), (2, 610820140), (4, 305410070), (5, 244328056), (7, 174520040), (8, 152705035), (10, 122164028), (14, 87260020), (20, 61082014), (28, 43630010), (35, 34904008), (40, 30541007), (56, 21815005), (70, 17452004), (140, 8726002), (280, 4363001), (1783, 685160), (2447, 499240), (3566, 342580), (4894, 249620), (7132, 171290), (8915, 137032), (9788, 124810), (12235, 99848), (12481, 97880), (14264, 85645), (17129, 71320), (17830, 68516), (19576, 62405), (24470, 49924), (24962, 48940), (34258, 35660)]