42940040

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{7507}}^1$

素因数の和:7542

約数の個数: 64

約数和(自身を含む): 113520960

約数和(自身を除く): 70580920

約数列:

[1, 2, 4, 5, 8, 10, 11, 13, 20, 22, 26, 40, 44, 52, 55, 65, 88, 104, 110, 130, 143, 220, 260, 286, 440, 520, 572, 715, 1144, 1430, 2860, 5720, 7507, 15014, 30028, 37535, 60056, 75070, 82577, 97591, 150140, 165154, 195182, 300280, 330308, 390364, 412885, 487955, 660616, 780728, 825770, 975910, 1073501, 1651540, 1951820, 2147002, 3303080, 3903640, 4294004, 5367505, 8588008, 10735010, 21470020, 42940040]

約数ペア:

[(1, 42940040), (2, 21470020), (4, 10735010), (5, 8588008), (8, 5367505), (10, 4294004), (11, 3903640), (13, 3303080), (20, 2147002), (22, 1951820), (26, 1651540), (40, 1073501), (44, 975910), (52, 825770), (55, 780728), (65, 660616), (88, 487955), (104, 412885), (110, 390364), (130, 330308), (143, 300280), (220, 195182), (260, 165154), (286, 150140), (440, 97591), (520, 82577), (572, 75070), (715, 60056), (1144, 37535), (1430, 30028), (2860, 15014), (5720, 7507)]