20029880

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^2\times {\mathrm{2963}}^1$

素因数の和:3000

約数の個数: 48

約数和(自身を含む): 48817080

約数和(自身を除く): 28787200

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 169, 260, 338, 520, 676, 845, 1352, 1690, 2963, 3380, 5926, 6760, 11852, 14815, 23704, 29630, 38519, 59260, 77038, 118520, 154076, 192595, 308152, 385190, 500747, 770380, 1001494, 1540760, 2002988, 2503735, 4005976, 5007470, 10014940, 20029880]

約数ペア:

[(1, 20029880), (2, 10014940), (4, 5007470), (5, 4005976), (8, 2503735), (10, 2002988), (13, 1540760), (20, 1001494), (26, 770380), (40, 500747), (52, 385190), (65, 308152), (104, 192595), (130, 154076), (169, 118520), (260, 77038), (338, 59260), (520, 38519), (676, 29630), (845, 23704), (1352, 14815), (1690, 11852), (2963, 6760), (3380, 5926)]