71399120

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^2\times {\mathrm{5281}}^1$

素因数の和:5320

約数の個数: 60

約数和(自身を含む): 179788716

約数和(自身を除く): 108389596

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 169, 208, 260, 338, 520, 676, 845, 1040, 1352, 1690, 2704, 3380, 5281, 6760, 10562, 13520, 21124, 26405, 42248, 52810, 68653, 84496, 105620, 137306, 211240, 274612, 343265, 422480, 549224, 686530, 892489, 1098448, 1373060, 1784978, 2746120, 3569956, 4462445, 5492240, 7139912, 8924890, 14279824, 17849780, 35699560, 71399120]

約数ペア:

[(1, 71399120), (2, 35699560), (4, 17849780), (5, 14279824), (8, 8924890), (10, 7139912), (13, 5492240), (16, 4462445), (20, 3569956), (26, 2746120), (40, 1784978), (52, 1373060), (65, 1098448), (80, 892489), (104, 686530), (130, 549224), (169, 422480), (208, 343265), (260, 274612), (338, 211240), (520, 137306), (676, 105620), (845, 84496), (1040, 68653), (1352, 52810), (1690, 42248), (2704, 26405), (3380, 21124), (5281, 13520), (6760, 10562)]