280132025

素因数分解:

$5^2\times {\mathrm{29}}^1\times {\mathrm{67}}^1\times {\mathrm{73}}^1\times {\mathrm{79}}^1$

素因数の和:258

約数の個数: 48

約数和(自身を含む): 374380800

約数和(自身を除く): 94248775

約数列:

[1, 5, 25, 29, 67, 73, 79, 145, 335, 365, 395, 725, 1675, 1825, 1943, 1975, 2117, 2291, 4891, 5293, 5767, 9715, 10585, 11455, 24455, 26465, 28835, 48575, 52925, 57275, 122275, 132325, 141839, 144175, 153497, 167243, 386389, 709195, 767485, 836215, 1931945, 3545975, 3837425, 4181075, 9659725, 11205281, 56026405, 280132025]

約数ペア:

[(1, 280132025), (5, 56026405), (25, 11205281), (29, 9659725), (67, 4181075), (73, 3837425), (79, 3545975), (145, 1931945), (335, 836215), (365, 767485), (395, 709195), (725, 386389), (1675, 167243), (1825, 153497), (1943, 144175), (1975, 141839), (2117, 132325), (2291, 122275), (4891, 57275), (5293, 52925), (5767, 48575), (9715, 28835), (10585, 26465), (11455, 24455)]