31500040

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{5507}}^1$

素因数の和:5542

約数の個数: 64

約数和(自身を含む): 83280960

約数和(自身を除く): 51780920

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, 5507, 5720, 11014, 22028, 27535, 44056, 55070, 60577, 71591, 110140, 121154, 143182, 220280, 242308, 286364, 302885, 357955, 484616, 572728, 605770, 715910, 787501, 1211540, 1431820, 1575002, 2423080, 2863640, 3150004, 3937505, 6300008, 7875010, 15750020, 31500040]

約数ペア:

[(1, 31500040), (2, 15750020), (4, 7875010), (5, 6300008), (8, 3937505), (10, 3150004), (11, 2863640), (13, 2423080), (20, 1575002), (22, 1431820), (26, 1211540), (40, 787501), (44, 715910), (52, 605770), (55, 572728), (65, 484616), (88, 357955), (104, 302885), (110, 286364), (130, 242308), (143, 220280), (220, 143182), (260, 121154), (286, 110140), (440, 71591), (520, 60577), (572, 55070), (715, 44056), (1144, 27535), (1430, 22028), (2860, 11014), (5507, 5720)]