18984680

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{3319}}^1$

素因数の和:3354

約数の個数: 64

約数和(自身を含む): 50198400

約数和(自身を除く): 31213720

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, 3319, 5720, 6638, 13276, 16595, 26552, 33190, 36509, 43147, 66380, 73018, 86294, 132760, 146036, 172588, 182545, 215735, 292072, 345176, 365090, 431470, 474617, 730180, 862940, 949234, 1460360, 1725880, 1898468, 2373085, 3796936, 4746170, 9492340, 18984680]

約数ペア:

[(1, 18984680), (2, 9492340), (4, 4746170), (5, 3796936), (8, 2373085), (10, 1898468), (11, 1725880), (13, 1460360), (20, 949234), (22, 862940), (26, 730180), (40, 474617), (44, 431470), (52, 365090), (55, 345176), (65, 292072), (88, 215735), (104, 182545), (110, 172588), (130, 146036), (143, 132760), (220, 86294), (260, 73018), (286, 66380), (440, 43147), (520, 36509), (572, 33190), (715, 26552), (1144, 16595), (1430, 13276), (2860, 6638), (3319, 5720)]