71404580

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{67}}^1\times {\mathrm{4099}}^1$

素因数の和:4188

約数の個数: 48

約数和(自身を含む): 163934400

約数和(自身を除く): 92529820

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 67, 130, 134, 260, 268, 335, 670, 871, 1340, 1742, 3484, 4099, 4355, 8198, 8710, 16396, 17420, 20495, 40990, 53287, 81980, 106574, 213148, 266435, 274633, 532870, 549266, 1065740, 1098532, 1373165, 2746330, 3570229, 5492660, 7140458, 14280916, 17851145, 35702290, 71404580]

約数ペア:

[(1, 71404580), (2, 35702290), (4, 17851145), (5, 14280916), (10, 7140458), (13, 5492660), (20, 3570229), (26, 2746330), (52, 1373165), (65, 1098532), (67, 1065740), (130, 549266), (134, 532870), (260, 274633), (268, 266435), (335, 213148), (670, 106574), (871, 81980), (1340, 53287), (1742, 40990), (3484, 20495), (4099, 17420), (4355, 16396), (8198, 8710)]