1550380

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{67}}^1\times {\mathrm{89}}^1$

素因数の和:178

約数の個数: 48

約数和(自身を含む): 3598560

約数和(自身を除く): 2048180

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 67, 89, 130, 134, 178, 260, 268, 335, 356, 445, 670, 871, 890, 1157, 1340, 1742, 1780, 2314, 3484, 4355, 4628, 5785, 5963, 8710, 11570, 11926, 17420, 23140, 23852, 29815, 59630, 77519, 119260, 155038, 310076, 387595, 775190, 1550380]

約数ペア:

[(1, 1550380), (2, 775190), (4, 387595), (5, 310076), (10, 155038), (13, 119260), (20, 77519), (26, 59630), (52, 29815), (65, 23852), (67, 23140), (89, 17420), (130, 11926), (134, 11570), (178, 8710), (260, 5963), (268, 5785), (335, 4628), (356, 4355), (445, 3484), (670, 2314), (871, 1780), (890, 1742), (1157, 1340)]