25799020

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{67}}^1\times {\mathrm{1481}}^1$

素因数の和:1570

約数の個数: 48

約数和(自身を含む): 59256288

約数和(自身を除く): 33457268

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 67, 130, 134, 260, 268, 335, 670, 871, 1340, 1481, 1742, 2962, 3484, 4355, 5924, 7405, 8710, 14810, 17420, 19253, 29620, 38506, 77012, 96265, 99227, 192530, 198454, 385060, 396908, 496135, 992270, 1289951, 1984540, 2579902, 5159804, 6449755, 12899510, 25799020]

約数ペア:

[(1, 25799020), (2, 12899510), (4, 6449755), (5, 5159804), (10, 2579902), (13, 1984540), (20, 1289951), (26, 992270), (52, 496135), (65, 396908), (67, 385060), (130, 198454), (134, 192530), (260, 99227), (268, 96265), (335, 77012), (670, 38506), (871, 29620), (1340, 19253), (1481, 17420), (1742, 14810), (2962, 8710), (3484, 7405), (4355, 5924)]