208247390

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{67}}^1\times {\mathrm{23909}}^1$

素因数の和:23996

約数の個数: 32

約数和(自身を含む): 409721760

約数和(自身を除く): 201474370

約数列:

[1, 2, 5, 10, 13, 26, 65, 67, 130, 134, 335, 670, 871, 1742, 4355, 8710, 23909, 47818, 119545, 239090, 310817, 621634, 1554085, 1601903, 3108170, 3203806, 8009515, 16019030, 20824739, 41649478, 104123695, 208247390]

約数ペア:

[(1, 208247390), (2, 104123695), (5, 41649478), (10, 20824739), (13, 16019030), (26, 8009515), (65, 3203806), (67, 3108170), (130, 1601903), (134, 1554085), (335, 621634), (670, 310817), (871, 239090), (1742, 119545), (4355, 47818), (8710, 23909)]